Fix onBefore/After save for categories
Update language file headers
Merge pull request #1728 from mahagr/master

Fix onBefore/After save for categories, update language file headers
Merge pull request #1727 from xillibit/k30_bugs10

#1726 Language / J! version issue
Fix Transifex issue with \" in the translations
Prevent notice in user views when user doesn't have email address
Merge branch 'master' of github.com:Kunena/Kunena-2.0
If user profile failed to save, do not display wrong profile information to the user
Merge pull request #1729 from mahagr/master

Fix \" issue in languages and wrong information displayed after profile failed to save