Merge .xsl & html template

Turns out they somehow serve a similar purpose

setup.py

@@ -13,7 +13,7 @@ setup(
     license = 'AGPL v3',
     packages = [package_name],
     install_requires = ['lxml', 'bs4', 'python-dateutil', 'chardet', 'pymysql'],
-    package_data = {package_name: ['feedify.ini', 'reader.html.template']},
+    package_data = {package_name: ['feedify.ini']},
     data_files = [
         ('share/' + package_name, ['README.md', 'LICENSE']),
         ('share/' + package_name + '/www', glob('www/*.*')),