NotifyActivitiesToProfilesJob: notify activities of private comm only to itself

ActionItem2283
Whitelisting plugins' folders that should be loaded by gettext

(ActionItem2721)
Fixing approve comment json lib call

(ActionItem2737)
Removing application helper include on require auth plugin
Adding default value for environment cross domain origin
Allowing nil source value for comment
Fixing broken tests on content_viewer
Fix for escaped HTML in blog posts listing
Fix: "Post a comment" button was disappearing

(ActionItem2742)
Fixed checkbox on signup page on webkit browsers

(ActionItem2743)
Merge commit 'refs/merge-requests/341' of git://gitorious.org/noosfero/noosfero into merge-requests/341
Merge commit 'refs/merge-requests/347' of git://gitorious.org/noosfero/noosfero into merge-requests/347
Merge commit 'refs/merge-requests/348' of git://gitorious.org/noosfero/noosfero into merge-requests/348
Fixing memory overload on blog with native translation feature

(ActionItem2471)
Merge branch 'blog-translations-memory-overload' into stable
Improving release script
Updating translations
Fixing terms
Rebuilding translations
Loading environment before generating error pages