GLMixer Code

Separation of blending equation and functions for RGB and Alpha (using glBlendEquationSeparate glBlendFunctionSeparate) to fix the bug of incorrect alpha when using inverse or custom modes (visible in feedback sources and shared memory).

Moved the display of error message box to avoid bloking the whole application for warnings.

Implementation of GLMixer sharing in memory.
Modification of shared memory map to detect changes in buffer without crashing

Update CMakeLists for Windows compilation (with opencv 2.3)

Edited wiki page Compilation through web user interface.

Enable user to attach / detach a shared memory source from property browser.

Uniformization of glTexture2D internal format to GL_RGBA8 for GPU efficiency.
Specified external data type to GL_UNSIGNED_INT_8_8_8_8_REV when possible for optimization.

Implementation of SHARED MEMORY sources & save/load in glm files.
+ Integration of Qt Exceptions for instanciation of EVERY source types.
- suppression of MixSource files.

Creation of dialogs and actions for shared memory source.
Bug fix in Algorithm source and clean-up code of Algorithm Selection dialog.
Bug fix Camera dialog.
+ Qt cosmetics on other uis ('buddies' in dialogs).

Fixed OpencvSource for Linux.