License is ambiguous 

I am a little bit confused  on the licensing part , which part of the code is under which license
@migueldeicaza  , can you please update/modify/add  the  relevant license files  , specifically the MIT related parts.
Each MIT license file should clearly state that it's "MIT License" , as you did in https://github.com/xamarin/urho-samples/blob/master/LICENSE

Thanks and sorry to bother you .
