refresh GLEW and use glGetProcAddressREGAL in GLEW_REGAL mode
improved support of NV_path_rendering entry points
fix for glewinfo when using Regal on OSX
fix Linux build of RegalGLU and RegalGLUT
tiger example works on Linux and OSX now
Add RegalPlugin private API for plugin dispatch layers to call back into Regal.
Resolve snappy library Windows compilation warnings.
Improvements for filtering emulation.
Support EXT_framebuffer_object on ES 2
GL_EXT_blend_color, GL_EXT_blend_subtract and GL_NV_blend_square emulation for ES 2.0.
ARB_shader_subroutine completeness for NV_gpu_program5 purposes.
Better log nesting for begin/end, push/pop log pairs.
Regal.cpp codegen tidy-up: reduce casting for default return values.
Regal context sharing for WGL too.
Log the return values of global functions (WGL, etc) in the driver logging stream.
Regal::Marker needs two versions of toString, depending on the relevant extension being emulated.
Also can be specified via REGAL_CONFIG_FILE environment variable.
Initial migration of Regal::Json::Output to boost::print::json::output
Update GLEW to sf/github TOT.
Extend GL database to list per-extension information
EmuFilter layer - selective ES 2.0 filtering
Increase the strictness of emulation regex matching - must be unique
Initial implementation of JSON output
