Update to improve the use of PyPI

Changes:
* Add classifiers
* Add __init__.py with package descriptions
* Update author and email field import in setup.py

qsb/__init__.py

@@ -0,0 +1,3 @@
+__version__ = "0.4.1"
+__author__ = "Dmytro Hoi"
+__email__ = "[email protected]"

setup.py

@@ -11,8 +11,8 @@
     packages=setuptools.find_packages(),
     url="https://github.com/dmytrohoi/pelican-qsb",
     license="MIT License",
-    author="dmytrohoi",
-    author_email="[email protected]",
+    author=qsb.__author__,
+    author_email=qsb.__email__,
     description="Simple helper for automation Pelican-based site building",
     long_description=long_description,
     long_description_content_type="text/markdown",
@@ -23,5 +23,9 @@
         "Programming Language :: Python :: 3",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
+        "Framework :: Pelican",
+        "Framework :: Pelican :: Plugins",
+        "Intended Audience :: Developers",
+        "Topic :: Software Development :: Build Tools"
     ],
-)
+)