re-added cell identifiers to nibs.

reverts commit: d998e152127b972f20be7c3a9639902f6c46c28d
text field cell awakeFromNib requires super. Some formatting
Added comment around delayed performBlock hack
don't use negative constraint constants, reverse items instead
reverse constraints
Merge commit '0ce9f1e946dd223bb17a2efb687d759e679803bc' into dev
removed gibberish placeholder text in xib
privatize outlets