Admin: Ignore "xcuserdata".

For Xcode 4+.
Project: New bits from Xcode 5.
Project: Update SDK setting.
Frameworks: Fix symbol collision.

This is a temporary fix until the framework itself is updated. In the
meantime, lets us compile.
Project: Remove code signing bits.
Init: Capture self from super.

Satisfies the static analyzer. Should build issue free now.
Project: Formatting++.

Just renaming some method parameters. No funtional changes.