Merge pull request #3 from jeffh/master

BSInitializer can call class methods and check argumentKeys.
Applies project upgrades as suggested by Xcode 4.6
Declare an explicit superclass for Blindside
Fixes format string specifiers to be sane on both 32 and 64 bit architectures
Merge pull request #4 from akitchen/master

A few minor fixes following Xcode 4.6 upgrade
Removed ONLY_ACTIVE_ARCH from …

… Blindside-StaticLib build settings so that 
static framework build artifact will support 
armv7s (iPhone 5) out of the box.
Merge pull request #5 from wileykestner/master

Removed ONLY_ACTIVE_ARCH from Blindside-StaticLib build settings