Fixed timago tooltip in conversations

Fixed timeago errors

Added cucumber stuff to test timeago at inbox

Show localized date/time in tooltip

Remove title attributes
Merge branch 'netom-4257-conversations-timeago' into develop
fix link to background image
Merge pull request #4289 from rivendale2010/patch-2

fix link to background image
Merge branch 'develop' of git://github.com/diaspora/diaspora into patch-3