diff --git a/.travis.yml b/.travis.yml
index 2eed328..e36f2a3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,10 @@
 language: node_js
 node_js:
-  - '6'
-  - '7'
-script: npm run build
+  - 6
+  - 8
+  - 9
+before_install: if [[ $( node --version ) =~ ^v8. ]]; then npm install -g greenkeeper-lockfile; fi;
+before_script: if [[ $( node --version ) =~ ^v8. ]]; then greenkeeper-lockfile-update; fi;
+script: npm test
+after_script: if [[ $( node --version ) =~ ^v8. ]]; then greenkeeper-lockfile-upload; fi;
 after_success: npm run coverage
diff --git a/package-lock.json b/package-lock.json
index f5a9a01..f905a8a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,6 +21,15 @@
         "babel-preset-env": "1.6.1"
       }
     },
+    "@comandeer/is-ci": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@comandeer/is-ci/-/is-ci-1.0.0.tgz",
+      "integrity": "sha512-h7a7oyfFjREroeyxrCyfJziN4WKSk5dL+x7nB3+K3RtOY8KN6XCILjYejF+59MxEoaFRDbzrNx7Cm+5NQRRXfg==",
+      "dev": true,
+      "requires": {
+        "is-ci": "1.0.10"
+      }
+    },
     "@comandeer/rollup-lib-bundler": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/@comandeer/rollup-lib-bundler/-/rollup-lib-bundler-0.3.0.tgz",
@@ -97,6 +106,12 @@
         "sprintf-js": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz"
       }
     },
+    "argv": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/argv/-/argv-0.0.2.tgz",
+      "integrity": "sha1-7L0W+JSbFXGDcRsb2jNPN4QBhas=",
+      "dev": true
+    },
     "arr-diff": {
       "version": "https://registry.npmjs.org/arr-diff/-/arr-diff-2.0.0.tgz",
       "integrity": "sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=",
@@ -135,12 +150,42 @@
       "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=",
       "dev": true
     },
+    "asn1": {
+      "version": "0.2.3",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.3.tgz",
+      "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=",
+      "dev": true
+    },
+    "assert-plus": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-0.2.0.tgz",
+      "integrity": "sha1-104bh+ev/A24qttwIfP+SBAasjQ=",
+      "dev": true
+    },
     "assertion-error": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.0.2.tgz",
       "integrity": "sha1-E8pRXYYgbaC6xm6DTdOX2HWBCUw=",
       "dev": true
     },
+    "asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
+      "dev": true
+    },
+    "aws-sign2": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.6.0.tgz",
+      "integrity": "sha1-FDQt0428yU0OW4fXY81jYSwOeU8=",
+      "dev": true
+    },
+    "aws4": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.6.0.tgz",
+      "integrity": "sha1-g+9cqGCysy5KDe7e6MdxudtXRx4=",
+      "dev": true
+    },
     "babel-code-frame": {
       "version": "6.26.0",
       "resolved": "https://registry.npmjs.org/babel-code-frame/-/babel-code-frame-6.26.0.tgz",
@@ -1009,6 +1054,25 @@
       "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
       "dev": true
     },
+    "bcrypt-pbkdf": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz",
+      "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "tweetnacl": "0.14.5"
+      }
+    },
+    "boom": {
+      "version": "2.10.1",
+      "resolved": "https://registry.npmjs.org/boom/-/boom-2.10.1.tgz",
+      "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
+      "dev": true,
+      "requires": {
+        "hoek": "2.16.3"
+      }
+    },
     "brace-expansion": {
       "version": "1.1.8",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.8.tgz",
@@ -1068,6 +1132,12 @@
       "integrity": "sha1-7HIDlXQvHH7IlH/W3SYE53qPmP8=",
       "dev": true
     },
+    "caseless": {
+      "version": "0.12.0",
+      "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
+      "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=",
+      "dev": true
+    },
     "chai": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/chai/-/chai-4.1.2.tgz",
@@ -1101,6 +1171,12 @@
       "integrity": "sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=",
       "dev": true
     },
+    "ci-info": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ci-info/-/ci-info-1.1.1.tgz",
+      "integrity": "sha512-vHDDF/bP9RYpTWtUhpJRhCFdvvp3iDWvEbuDbWgvjUrNGV1MXJrE0MPcwGtEled04m61iwdBLUIHZtDgzWS4ZQ==",
+      "dev": true
+    },
     "circular-json": {
       "version": "0.3.3",
       "resolved": "https://registry.npmjs.org/circular-json/-/circular-json-0.3.3.tgz",
@@ -1128,6 +1204,17 @@
       "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
       "dev": true
     },
+    "codecov": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.0.0.tgz",
+      "integrity": "sha1-wnO4xPEpRXI+jcnSWAPYk0Pl8o4=",
+      "dev": true,
+      "requires": {
+        "argv": "0.0.2",
+        "request": "2.81.0",
+        "urlgrey": "0.4.4"
+      }
+    },
     "color-convert": {
       "version": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.0.tgz",
       "integrity": "sha1-Gsz5fdc5uYO/mU1W/sj5WFNkG3o=",
@@ -1141,6 +1228,35 @@
       "integrity": "sha1-XIq3K2S9IhXWF66VWeuxSEdc+Y0=",
       "dev": true
     },
+    "combined-stream": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.5.tgz",
+      "integrity": "sha1-k4NwpXtKUd6ix3wV1cX9+JUWQAk=",
+      "dev": true,
+      "requires": {
+        "delayed-stream": "1.0.0"
+      }
+    },
+    "commitplease": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/commitplease/-/commitplease-3.1.0.tgz",
+      "integrity": "sha512-bMIzmsatPX6Wu2VmUKmtyiHxd6q2zZp4/+Y+M4HlX9wwH4iiHADuRMfN/X09x/UdcnjHP6sT2hHGEj2h38v+NA==",
+      "dev": true,
+      "requires": {
+        "chalk": "1.1.3",
+        "git-tools": "0.2.1",
+        "ini": "1.3.4",
+        "semver": "5.4.1"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "5.4.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.4.1.tgz",
+          "integrity": "sha512-WfG/X9+oATh81XtllIo/I8gOiY9EXRdv1cQdyykeXK17YcUW3EXUAi2To4pcH6nZtJPr7ZOpM5OMyWJZm+8Rsg==",
+          "dev": true
+        }
+      }
+    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -1158,11 +1274,6 @@
         "typedarray": "0.0.6"
       }
     },
-    "conventional-commit-types": {
-      "version": "https://registry.npmjs.org/conventional-commit-types/-/conventional-commit-types-2.1.0.tgz",
-      "integrity": "sha1-RdhgOGyaLmU37pHYobYb0EEbPQQ=",
-      "dev": true
-    },
     "convert-source-map": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.5.0.tgz",
@@ -1181,17 +1292,75 @@
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
       "dev": true
     },
+    "cryptiles": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/cryptiles/-/cryptiles-2.0.5.tgz",
+      "integrity": "sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=",
+      "dev": true,
+      "requires": {
+        "boom": "2.10.1"
+      }
+    },
     "cz-conventional-changelog": {
-      "version": "https://registry.npmjs.org/cz-conventional-changelog/-/cz-conventional-changelog-2.0.0.tgz",
-      "integrity": "sha1-Val5r9/pXnAkh50qD1kkYwFwtTM=",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/cz-conventional-changelog/-/cz-conventional-changelog-2.1.0.tgz",
+      "integrity": "sha1-L0vHOQ4yROTfKT5ro1Hkx0Cnx2Q=",
+      "dev": true,
+      "requires": {
+        "conventional-commit-types": "2.2.0",
+        "lodash.map": "4.6.0",
+        "longest": "1.0.1",
+        "right-pad": "1.0.1",
+        "word-wrap": "1.2.3"
+      },
+      "dependencies": {
+        "conventional-commit-types": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/conventional-commit-types/-/conventional-commit-types-2.2.0.tgz",
+          "integrity": "sha1-XblXOdbCEqy+e29lahG5QLqmiUY=",
+          "dev": true
+        },
+        "lodash.map": {
+          "version": "4.6.0",
+          "resolved": "https://registry.npmjs.org/lodash.map/-/lodash.map-4.6.0.tgz",
+          "integrity": "sha1-dx7Hg540c9nEzeKLGTlMNWL09tM=",
+          "dev": true
+        },
+        "longest": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
+          "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
+          "dev": true
+        },
+        "right-pad": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/right-pad/-/right-pad-1.0.1.tgz",
+          "integrity": "sha1-jKCMLLtbVedNr6lr9/0aJ9VoyNA=",
+          "dev": true
+        },
+        "word-wrap": {
+          "version": "1.2.3",
+          "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
+          "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
+          "dev": true
+        }
+      }
+    },
+    "dashdash": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
+      "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
       "dev": true,
       "requires": {
-        "conventional-commit-types": "https://registry.npmjs.org/conventional-commit-types/-/conventional-commit-types-2.1.0.tgz",
-        "lodash.map": "https://registry.npmjs.org/lodash.map/-/lodash.map-4.6.0.tgz",
-        "longest": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
-        "pad-right": "https://registry.npmjs.org/pad-right/-/pad-right-0.2.2.tgz",
-        "right-pad": "https://registry.npmjs.org/right-pad/-/right-pad-1.0.1.tgz",
-        "word-wrap": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.2.tgz"
+        "assert-plus": "1.0.0"
+      },
+      "dependencies": {
+        "assert-plus": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+          "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
+          "dev": true
+        }
       }
     },
     "debug": {
@@ -1232,6 +1401,12 @@
         "rimraf": "2.6.2"
       }
     },
+    "delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk=",
+      "dev": true
+    },
     "detect-indent": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/detect-indent/-/detect-indent-4.0.0.tgz",
@@ -1251,6 +1426,16 @@
         "isarray": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz"
       }
     },
+    "ecc-jsbn": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz",
+      "integrity": "sha1-D8c6ntXw1Tw4GTOYUj735UN3dQU=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "jsbn": "0.1.1"
+      }
+    },
     "electron-to-chromium": {
       "version": "1.3.27",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.27.tgz",
@@ -1500,6 +1685,12 @@
         "fill-range": "https://registry.npmjs.org/fill-range/-/fill-range-2.2.3.tgz"
       }
     },
+    "extend": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.1.tgz",
+      "integrity": "sha1-p1Xqe8Gt/MWjHOfnYtuq3F5jZEQ=",
+      "dev": true
+    },
     "external-editor": {
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/external-editor/-/external-editor-2.0.5.tgz",
@@ -1527,6 +1718,12 @@
         "is-extglob": "https://registry.npmjs.org/is-extglob/-/is-extglob-1.0.0.tgz"
       }
     },
+    "extsprintf": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
+      "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=",
+      "dev": true
+    },
     "fast-deep-equal": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz",
@@ -1605,6 +1802,23 @@
         "for-in": "https://registry.npmjs.org/for-in/-/for-in-1.0.2.tgz"
       }
     },
+    "forever-agent": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
+      "integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE=",
+      "dev": true
+    },
+    "form-data": {
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.1.4.tgz",
+      "integrity": "sha1-M8GDrPGTJ27KqYFDpp6Uv+4XUNE=",
+      "dev": true,
+      "requires": {
+        "asynckit": "0.4.0",
+        "combined-stream": "1.0.5",
+        "mime-types": "2.1.17"
+      }
+    },
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
@@ -1623,6 +1837,32 @@
       "integrity": "sha1-6td0q+5y4gQJQzoGY2YCPdaIekE=",
       "dev": true
     },
+    "getpass": {
+      "version": "0.1.7",
+      "resolved": "https://registry.npmjs.org/getpass/-/getpass-0.1.7.tgz",
+      "integrity": "sha1-Xv+OPmhNVprkyysSgmBOi6YhSfo=",
+      "dev": true,
+      "requires": {
+        "assert-plus": "1.0.0"
+      },
+      "dependencies": {
+        "assert-plus": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+          "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
+          "dev": true
+        }
+      }
+    },
+    "git-tools": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/git-tools/-/git-tools-0.2.1.tgz",
+      "integrity": "sha1-bhhGrywOkatZJYtI+bU8EnmzsnM=",
+      "dev": true,
+      "requires": {
+        "spawnback": "1.0.0"
+      }
+    },
     "glob": {
       "version": "7.1.2",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
@@ -1685,6 +1925,34 @@
       "integrity": "sha512-hKlsbA5Vu3xsh1Cg3J7jSmX/WaW6A5oBeqzM88oNbCRQFz+zUaXm6yxS4RVytp1scBoJzSYl4YAEOQIt6O8V1Q==",
       "dev": true
     },
+    "har-schema": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/har-schema/-/har-schema-1.0.5.tgz",
+      "integrity": "sha1-0mMTX0MwfALGAq/I/pWXDAFRNp4=",
+      "dev": true
+    },
+    "har-validator": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-4.2.1.tgz",
+      "integrity": "sha1-M0gdDxu/9gDdID11gSpqX7oALio=",
+      "dev": true,
+      "requires": {
+        "ajv": "4.11.8",
+        "har-schema": "1.0.5"
+      },
+      "dependencies": {
+        "ajv": {
+          "version": "4.11.8",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz",
+          "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
+          "dev": true,
+          "requires": {
+            "co": "4.6.0",
+            "json-stable-stringify": "1.0.1"
+          }
+        }
+      }
+    },
     "has-ansi": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
@@ -1694,12 +1962,30 @@
         "ansi-regex": "2.1.1"
       }
     },
+    "hawk": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/hawk/-/hawk-3.1.3.tgz",
+      "integrity": "sha1-B4REvXwWQLD+VA0sm3PVlnjo4cQ=",
+      "dev": true,
+      "requires": {
+        "boom": "2.10.1",
+        "cryptiles": "2.0.5",
+        "hoek": "2.16.3",
+        "sntp": "1.0.9"
+      }
+    },
     "he": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/he/-/he-1.1.1.tgz",
       "integrity": "sha1-k0EP0hsAlzUVH4howvJx80J+I/0=",
       "dev": true
     },
+    "hoek": {
+      "version": "2.16.3",
+      "resolved": "https://registry.npmjs.org/hoek/-/hoek-2.16.3.tgz",
+      "integrity": "sha1-ILt0A9POo5jpHcRxCo/xuCdKJe0=",
+      "dev": true
+    },
     "home-or-tmp": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/home-or-tmp/-/home-or-tmp-2.0.0.tgz",
@@ -1710,6 +1996,28 @@
         "os-tmpdir": "1.0.2"
       }
     },
+    "http-signature": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.1.1.tgz",
+      "integrity": "sha1-33LiZwZs0Kxn+3at+OE0qPvPkb8=",
+      "dev": true,
+      "requires": {
+        "assert-plus": "0.2.0",
+        "jsprim": "1.4.1",
+        "sshpk": "1.13.1"
+      }
+    },
+    "husky": {
+      "version": "0.14.3",
+      "resolved": "https://registry.npmjs.org/husky/-/husky-0.14.3.tgz",
+      "integrity": "sha512-e21wivqHpstpoiWA/Yi8eFti8E+sQDSS53cpJsPptPs295QTOQR0ZwnHo2TXy1XOpZFD9rPOd3NpmqTK6uMLJA==",
+      "dev": true,
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+      "resolved": "https://registry.npmjs.org/jsonify/-/jsonify-0.0.0.tgz",
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+      "integrity": "sha1-MT5mvB5cwG5Di8G3SZwuXFastqI=",
+      "dev": true,
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+          "dev": true
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@@ -2101,6 +2480,21 @@
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+      "dev": true
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+      "integrity": "sha1-Cdejk/A+mVp5+K+Fe3Cp4KsWVXo=",
+      "dev": true,
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@@ -2203,6 +2597,12 @@
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+      "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-1.0.0.tgz",
+      "integrity": "sha1-MtDkcvkf80VwHBWoMRAY07CpA3k=",
+      "dev": true
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@@ -3803,6 +4203,12 @@
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+      "integrity": "sha1-Rqarfwrq2N6unsBWV4C31O/rnUM=",
+      "dev": true
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@@ -3867,14 +4273,6 @@
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-      "integrity": "sha1-b7ySQEXSRPKiokRQMGDTv8YAl3Q=",
-      "dev": true,
-      "requires": {
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       "integrity": "sha1-ssN2z7EfNVE7rdFz7wu246OIORw=",
@@ -3909,6 +4307,12 @@
       "integrity": "sha1-uULm1L3mUwBe9rcTYd74cn0GReA=",
       "dev": true
     },
+    "performance-now": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-0.2.0.tgz",
+      "integrity": "sha1-M+8wxcd9TqIcWlOGnZG1bY8lVeU=",
+      "dev": true
+    },
     "pify": {
       "version": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
       "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw=",
@@ -3966,6 +4370,18 @@
       "integrity": "sha1-8FKijacOYYkX7wqKw0wa5aaChrM=",
       "dev": true
     },
+    "punycode": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
+      "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4=",
+      "dev": true
+    },
+    "qs": {
+      "version": "6.4.0",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.4.0.tgz",
+      "integrity": "sha1-E+JtKK1rD/qpExLNO/cI7TUecjM=",
+      "dev": true
+    },
     "randomatic": {
       "version": "https://registry.npmjs.org/randomatic/-/randomatic-1.1.6.tgz",
       "integrity": "sha1-EQ3Kv/OX6dz/fAeJzMCkmt8exbs=",
@@ -4080,6 +4496,36 @@
         "is-finite": "1.0.2"
       }
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+    "request": {
+      "version": "2.81.0",
+      "resolved": "https://registry.npmjs.org/request/-/request-2.81.0.tgz",
+      "integrity": "sha1-xpKJRqDgbF+Nb4qTM0af/aRimKA=",
+      "dev": true,
+      "requires": {
+        "aws-sign2": "0.6.0",
+        "aws4": "1.6.0",
+        "caseless": "0.12.0",
+        "combined-stream": "1.0.5",
+        "extend": "3.0.1",
+        "forever-agent": "0.6.1",
+        "form-data": "2.1.4",
+        "har-validator": "4.2.1",
+        "hawk": "3.1.3",
+        "http-signature": "1.1.1",
+        "is-typedarray": "1.0.0",
+        "isstream": "0.1.2",
+        "json-stringify-safe": "5.0.1",
+        "mime-types": "2.1.17",
+        "oauth-sign": "0.8.2",
+        "performance-now": "0.2.0",
+        "qs": "6.4.0",
+        "safe-buffer": "5.1.1",
+        "stringstream": "0.0.5",
+        "tough-cookie": "2.3.3",
+        "tunnel-agent": "0.6.0",
+        "uuid": "3.1.0"
+      }
+    },
     "require-uncached": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/require-uncached/-/require-uncached-1.0.3.tgz",
@@ -4106,11 +4552,6 @@
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-    "right-pad": {
-      "version": "https://registry.npmjs.org/right-pad/-/right-pad-1.0.1.tgz",
-      "integrity": "sha1-jKCMLLtbVedNr6lr9/0aJ9VoyNA=",
-      "dev": true
-    },
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       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.2.tgz",
@@ -4281,6 +4722,15 @@
         }
       }
     },
+    "sntp": {
+      "version": "1.0.9",
+      "resolved": "https://registry.npmjs.org/sntp/-/sntp-1.0.9.tgz",
+      "integrity": "sha1-ZUEYTMkK7qbG57NeJlkIJEPGYZg=",
+      "dev": true,
+      "requires": {
+        "hoek": "2.16.3"
+      }
+    },
     "source-map": {
       "version": "0.5.7",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
@@ -4296,11 +4746,41 @@
         "source-map": "0.5.7"
       }
     },
+    "spawnback": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/spawnback/-/spawnback-1.0.0.tgz",
+      "integrity": "sha1-9zZi9+VNlTZ+ynTWQmxnfdfqaG8=",
+      "dev": true
+    },
     "sprintf-js": {
       "version": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
       "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
       "dev": true
     },
+    "sshpk": {
+      "version": "1.13.1",
+      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.13.1.tgz",
+      "integrity": "sha1-US322mKHFEMW3EwY/hzx2UBzm+M=",
+      "dev": true,
+      "requires": {
+        "asn1": "0.2.3",
+        "assert-plus": "1.0.0",
+        "bcrypt-pbkdf": "1.0.1",
+        "dashdash": "1.14.1",
+        "ecc-jsbn": "0.1.1",
+        "getpass": "0.1.7",
+        "jsbn": "0.1.1",
+        "tweetnacl": "0.14.5"
+      },
+      "dependencies": {
+        "assert-plus": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+          "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
+          "dev": true
+        }
+      }
+    },
     "string_decoder": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
@@ -4310,6 +4790,12 @@
         "safe-buffer": "5.1.1"
       }
     },
+    "stringstream": {
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
+      "integrity": "sha1-TkhM1N5aC7vuGORjB3EKioFiGHg=",
+      "dev": true
+    },
     "strip-ansi": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
@@ -4319,6 +4805,12 @@
         "ansi-regex": "2.1.1"
       }
     },
+    "strip-indent": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/strip-indent/-/strip-indent-2.0.0.tgz",
+      "integrity": "sha1-XvjbKV0B5u1sv3qrlpmNeCJSe2g=",
+      "dev": true
+    },
     "strip-json-comments": {
       "version": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
       "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
@@ -4439,6 +4931,15 @@
       "integrity": "sha1-uDVx+k2MJbguIxsG46MFXeTKGkc=",
       "dev": true
     },
+    "tough-cookie": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.3.tgz",
+      "integrity": "sha1-C2GKVWW23qkL80JdBNVe3EdadWE=",
+      "dev": true,
+      "requires": {
+        "punycode": "1.4.1"
+      }
+    },
     "trim-right": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz",
@@ -4451,6 +4952,22 @@
       "integrity": "sha1-OTvnMKlEb9Hq1tpZoBQwjzbCics=",
       "dev": true
     },
+    "tunnel-agent": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
+      "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
+      "dev": true,
+      "requires": {
+        "safe-buffer": "5.1.1"
+      }
+    },
+    "tweetnacl": {
+      "version": "0.14.5",
+      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
+      "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
+      "dev": true,
+      "optional": true
+    },
     "type-check": {
       "version": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
@@ -4471,12 +4988,43 @@
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=",
       "dev": true
     },
+    "urlgrey": {
+      "version": "0.4.4",
+      "resolved": "https://registry.npmjs.org/urlgrey/-/urlgrey-0.4.4.tgz",
+      "integrity": "sha1-iS/pWWCAXoVRnxzUOJ8stMu3ZS8=",
+      "dev": true
+    },
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
       "dev": true
     },
+    "uuid": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.1.0.tgz",
+      "integrity": "sha512-DIWtzUkw04M4k3bf1IcpS2tngXEL26YUD2M0tMDUpnUrz2hgzUBlD55a4FjdLGPvfHxS6uluGWvaVEqgBcVa+g==",
+      "dev": true
+    },
+    "verror": {
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
+      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
+      "dev": true,
+      "requires": {
+        "assert-plus": "1.0.0",
+        "core-util-is": "1.0.2",
+        "extsprintf": "1.3.0"
+      },
+      "dependencies": {
+        "assert-plus": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+          "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
+          "dev": true
+        }
+      }
+    },
     "vlq": {
       "version": "0.2.3",
       "resolved": "https://registry.npmjs.org/vlq/-/vlq-0.2.3.tgz",
@@ -4491,11 +5039,6 @@
         "isexe": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz"
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-    "word-wrap": {
-      "version": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.2.tgz",
-      "integrity": "sha1-j6eMO9o+MTjHeX+rzq5wmWiBS0E=",
-      "dev": true
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diff --git a/package.json b/package.json
index e19077c..5748a07 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "pretest": "npm run lint",
     "test": "nyc mocha tests/*.js --timeout 15000 --require babel-register",
     "coverage": "nyc report --reporter=text-lcov > coverage.lcov && codecov",
-    "commitmsg": "commitplease .git/COMMIT_EDITMSG",
+    "commitmsg": "is-ci && exit 0 || commitplease .git/COMMIT_EDITMSG",
     "preversion": "npm run test && npm run build && git add -f dist/",
     "postversion": "git rm -r --cached dist/ && git commit -m \"chore(dist): clean after release [ci skip]\" && git push origin && git push origin --tags"
   },
@@ -62,6 +62,7 @@
     }
   },
   "devDependencies": {
+  	"@comandeer/is-ci": "^1.0.0",
     "@comandeer/rollup-lib-bundler": "^0.3.0",
     "babel-plugin-transform-es2015-modules-commonjs": "^6.26.0",
     "babel-register": "^6.26.0",