Adds spec
Fixes event sorting
Adds changelog entry
Adds spec
Adds changelog entry
Merge pull request #575 from opf/fix/activity_atom_feed

[FIX] Activity atom feed
Merge pull request #576 from opf/fix/forum_atom_feed

[FIX] Forum atom feed
Merge remote-tracking branch 'opf/feature/rails3' into fix/change_timestamps_to_utc

Conflicts:
	doc/CHANGELOG.md