Changes :
    -   simplified random class implementation
    -   renamed color_rgb to rgb_color
    -   added option to specified API revision when initializing the renderer
        (not active yet, though)
Changes :
    - minor fixes to color classes
Changes :
    - added support for VC++12 to stlsoft libraries
    - added support for VC++12 to v8
    - fixed some compile errors for MinGW/Clang
    - minor improvements to the renderer's interface
Merge branch 'procedural_color_palette_improvements'