Apothecary: FreeImage 3.16.0 Working for iOS/OSX

- Finally fixed it. Tested and Working!!!!
I was able to cmake a Xcode project using an old OGRE engine dependancy generator built for FreeImage 2.8. I swapped in 3.16.0 and was able to use Xcode to fix all the very broken code FreeImage 3.16.0 has.
I've e-mailed the main author of FreeImages with these fixes, but they will do fine for us.
See Patch for more detail: https://github.com/danoli3/FreeImage/commit/f069aaefc6724fa9c8065a47000b31212024e9d6

FreeImage iOS: [![Build Status](https://travis-ci.org/danoli3/apothecary-den.svg?branch=freeimage-ios)](https://travis-ci.org/danoli3/apothecary-den/builds/37897903)
FreeImage OSX: [![Build Status](https://travis-ci.org/danoli3/apothecary-den.svg?branch=freeimage-osx)](https://travis-ci.org/danoli3/apothecary-den/builds/37940834)