Functions to show and hide mouse cursor at runtime

Fixes for C++, bool type already defined

LoadCubicmap() supports custom texture rectangle (from texture atlas)
for every cubic-face.
CheckCollision*() for spheres and bounding-boxes.

Custom shaders for models
Postprocessig on FBO (in progress)
Some useless spaces removed

Recompiled by procedural! Thanks!

Fixes for makefiles, GLFW 3.1 library for Linux

Now support multiple platforms

Integration from develop branch to master

Improved support for mac osx.

Reference to libglfw dylib fixed

Improved makefiles!

Integrate master into develop branch

Also, added support for normals on models

Edited to better accomodate to multiple platforms

Added first version of OS X compilation support
Some conflicts manually resolved...

Integration from develop branch

Corrected some bugs on the way...
Automatically convert textures to POT on RPI and WEB