Fixed a typo

Pretty sure comapring the pointer address of the quietzone is not what
it should be doing there.
Analysis possible memory warning

Just moved the release call to an autorelease to not have to manually
release it on an early return.
Removed QuickTime and updated project settings.

QTKit is enough and we don't get a warning about the missing QuickTime
in 64-bit.

-Wno-objc-interface-ivars to warnings as they are needed for 32-bit
code, but we shouldn't see a warning about them in 64-bit

Removed build settings that match Apple's default

Added .gitignore for personal Xcode settings