Begin working on Xcode 6 features.
Restore pdf vector graphics.
Mark images as universal.
Migrate a few classes to Swift, mostly as a learning experience.
More work on the Swift code.
Have OS X Swift code be in its own file.
Add back the PPMusicList classes to the iOS player.
Merge branch 'master' into Xcode6
Remove commented-out code.
Add a Swift class.
Merge branch 'master' into Xcode6
Remove autolayout on PlayerPRO 6 document xib.
Minor changes to xibs.
Add a few more classes.
Add byte-swapping convenient Swift extensions.
A few fixes to some byte swap functions.
I'm not happy with the way it's done, though.
Moving includes around.
Byte-swap an unused variable, just in case.
Oops, forgot to migrate a reference over.
Some code modernization
Merge branch 'master' into Xcode6

Conflicts:
	PPMacho.xcodeproj/xcshareddata/xcschemes/PPImport-app.xcscheme
	PPMacho.xcodeproj/xcshareddata/xcschemes/PPImport-release.xcscheme
	PlayerPROKit/PPDriver.h
	PlayerPROKit/PPDriver.m
	Shared/PPErrors.h
oops