Fix 'scroll to end' etc. buttons on iOS 5.
Remove dev.forums.

This was mostly for testing JSON output. I haven't lost faith that we'll one
day get JSON from the Forums, but I won't continue to maintain this code for a
feature so few get to use.
Fix enum type.
Update CocoaPods and reinstall pods.
Update PSTCollectionView to master.

Fixes crash after hiding an icon action sheet in iOS 7.
Fix ellipsis button's hair trigger.

Its gesture recognizer won't recognize unless there's no scrolling.