Support bitcode, multi-arch build in command line. C++11 enabled. Minimal iOS version support is 5.0.

The original project is https://code.google.com/p/ios-cmake . I almost rewrote the whole code to support new features and simplify the usage.

• IOS_ARCH: Architectures being compiled for. Multiple architectures are seperated by ";". It MUST be set.
• IOS_DEPLOYMENT_TARGET: Minimal target iOS version to run. Default is current sdk version.
• IOS_BITCODE: Enable bitcode or not. Only iOS >= 6.0 device build can enable bitcode. Default is enabled.
• IOS_EMBEDDED_FRAMEWORK: Build as embedded framework for IOS_DEPLOYMENT_TARGET >= 8.0. Default is disabled and relocatable object is used.

• xcode project is not well supported