Fix MSIE 11 recognition
Addressed comments from notifications generation review (http://codereview.adblockplus.org/11275006/)
Implemented a simple file-based CMS
Renamed sitescripts.web.* into sitescripts.cms.* to avoid naming conflict with the sitescripts.web module

--HG--
rename : sitescripts/web/__init__.py => sitescripts/cms/__init__.py
rename : sitescripts/web/bin/__init__.py => sitescripts/cms/bin/__init__.py
rename : sitescripts/web/bin/generate_static_pages.py => sitescripts/cms/bin/generate_static_pages.py
rename : sitescripts/web/bin/test_server.py => sitescripts/cms/bin/test_server.py
rename : sitescripts/web/converters.py => sitescripts/cms/converters.py
rename : sitescripts/web/sources.py => sitescripts/cms/sources.py
rename : sitescripts/web/utils.py => sitescripts/cms/utils.py