added rss to groups and blogs,
removed tons of unused things,
added a couple of rest services,
fixed bug on forums and event creation
last i18n
Merge branch 'version_3_0' of https://github.com/mion00/Airesis into version_3_0

Conflicts:
	app/assets/stylesheets/blog_kit.css
	app/models/quorum.rb
changes for i18n files and fixes in alerts count and proposal editing on tablets
css fixes
user sensitive data
various bugfix
enabled click on calendar
changed "gradimento" and "rank"
bugfix for group description
tutorial