Remove '-' from polymer substitution to prevent JSON parse error

(c) Copyright IBM Corp. 2016

Author: peller

etc/notebooks/tests/Walkthrough-Scala.ipynb

@@ -320,8 +320,8 @@
    "source": [
     "%%html\n",
     "<template is=\"urth-core-bind\">\n",
-    "    <urth-core-dataframe id=\"f3\" ref=\"df\" value=\"{{contact-info}}\" auto></urth-core-dataframe>\n",
-    "    <template is=\"dom-repeat\" items=\"{{contact-info.data}}\">\n",
+    "    <urth-core-dataframe id=\"f3\" ref=\"df\" value=\"{{contactInfo}}\" auto></urth-core-dataframe>\n",
+    "    <template is=\"dom-repeat\" items=\"{{contactInfo.data}}\">\n",
     "      <div class=\"info\">\n",
     "            <span class=\"test5\">{{item.0}}</span>, <span>{{item.1}}</span>\n",
     "      </div>\n",