* Added real clean target to each directory * Now call ndk-build clean on the Android/AmmoCore * Now removing all gen, obj, and libs directories where appropriate   in a real clean
* Added real clean target to each directory
* Now call ndk-build clean on the Android/AmmoCore
* Now removing all gen, obj, and libs directories where appropriate
  in a real clean

isis-ammo/ammo-core,isis-ammo/ammo-core