Complete internal redesign of the library to support OpenGL 3.3+ and OpenGL ES 2.0.

New big module rlgl has been added to 'translate' immediate mode style functions (i.e. rlBegin(), rlVertex3f()) to GL 1.1, 3.3+ or ES2. Another new module raymath has also been added with lot of useful 3D math vector-matrix-quaternion functions.

raylib v1.1.0 was published in April but this new v1.1.1 release implements multiple bugs corrections and some new features (view CHANGELOG for a detailed list of changes).

One complete game has been included for reference: Dr. Turtle and Mr. Gamera.