Fixed window positioning on OS X.
Enabled OpenGL 3.x and 4.x context on OS X 10.9.
Updated references to OS X (previously Mac OS X).
Fixed documentation tag name.
Updated OS X OpenGL compatibility docs.
Moved to auto-updated docs URLs.
Added blank cursor creation error checking on X11.
Cleaned up X error handler work.
Tagged close flag for use from secondary threads.
Added GLFW_OPENED to transition guide.
Added forcing of swap interval on DWM composition.
Moved X11 character translation failure test.
Cleanup of size_t use.
Added support for choosing the GPU target for rendering commands using
the wgl_nv_gpu_affinity extension.

Added a native api method to get the wgl dc