fixed news comments gravatar misposition.
improved style. changelog.
Renames settings
Fixes tests
Adds settings migration
Adds changelog entry
fixes translation
Merge pull request #446 from opf/migration/settings

[MIGRATION] Settings
firefox fix.
Merge pull request #450 from opf/fix/news_comments_css

Fix/news comments css
Merge remote-tracking branch 'opf/feature/rails3' into feature/add_server_side_timeline_filters

Conflicts:
	doc/CHANGELOG.md