latest XCode + iOS 7.1
pulling latest changes from torch-android
adding changes from torch-android
readme->readme
more changes pulled from torch-android
build fixes
removing imgraph because 64-bit compilation errors (didnt look into it too much)
removing PNG and JPEG lib checks
cleaning up CMakeLists to use xcrun
removing findpackage for readline and dl
adding newer dok
script to generate universal framework, armv7, v7a, v64, i386(sim), x86_64(sim)
update readme
exit on error
Merge pull request #1 from soumith/ios

Universal framework support (all architechtures including simulator), latest XCode compatibility