update DM API
Fix blocking functions.
Fix DM functions, but AJAX still not working.
Merged: seoak/dc91add -> appfog
Update: Favorites
Update: list info
Fixed: list memberships
Update: rest lists APIs
Update: following & followers
Update: rate limit
Fixed: listed count on sidebar
Fix foing/foer
Fix page links on foer/foing lists.
Replace DELETE method with POST method according to API 1.1 docs.
Fixed: DM delete
Merge remote-tracking branch 'origin/seoak' into appfog
Fix: (not sure) user relationship
Improve listed_count getting method.
Merge remote-tracking branch 'origin/seoak' into appfog
Clean: favor.php