Suggestion: Move to Boost iOS Framework

[rexstjohn]

I struggled with making Boost compile and work with XCode 5 + iOS 7.

However, when I used the Boost iOS Universal Framework(https://github.com/FWKamil/boost-ios) I was able to get it building and compiling properly.

This is a much easier way to make this library. Just drag and drop their .framework into your project and it builds. You also have to update the compiler settings switch (under build settings) to LLVM 5.0. It built right away for me with no issues.

Also, remove references to any prior Boost libraries in build settings.