Pod update.
Stub in table view controllers for all the options.
Split the UIColor+HexCodes file into three files, adding an identical category on CIColor.
Remove commented out code for setting up inverse relationships, as Core Data does seem to do that automatically.
# Labels

* Create a series of lightweight table view controllers to manage the various lists.
* Implement the Labels list, which includes showing the label color.
Remove debug logging.
# Labels

* Add list controllers to iPhone storyboard.
* Set up label list for iPhone.

Refs #14