Actually add some meat to the new window controller.
Fix initialization and ARC analyzer errors from AppCode.
Can't include Python byte code.
Make NTNDualTextfield an NSSearchfield - makes our job much easier in the long run.
Some general code-quality-type cleanups.
Fix the default directory icon in Preferences.
Significant dead code, import, and ivar removal.
Upgrade all NIBs to XIBs. Fix "view is clipping its content" warnings.