Makefile for iPhone

found on the web, see 
http://robertcarlsen.net/2009/03/16/openframeworks-iphone-586
http://robertcarlsen.net/2009/03/25/openframeworks-iphone-libs-593
http://4u.jeffcrouse.info/of/

See also : 
Makefile for XCode 4.6 and iOS SDK 6.1 
http://sourceforge.net/p/freeimage/discussion/36109/thread/1f345192/
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Run "make -f Makefile.iphone". 
This should build both the iPhone and iPhone Simulator libraries into the "Dist" folder. 
