Add Regal support for GL_ANGLE_timer_query and GL_INTEL_map_texture
GLEW refresh to Sourceforge top-of-tree
Codegen refinement - sort enums by name for switch statements, etc
ARB_multitexture emulation for ES 2.0
(ARB|EXT)_texture_env_combine and (ARB|EXT)_texture_env_dot3 for ES 2.0
Initial integration of apitrace as Regal dispatch layer
http://apitrace.github.io/
Update current context only when MakeCurrent call succeeds
Check parsed ES version number
Add OpenGL 4.4 support
Update GLEW to 1.10.0
Update Makefiles to support Emscripten

- Use BIN.SUFFIX instead of BIN_EXTENSION for consistency
- Don't build static/shared lib if the filename isn't specified
- Examples should depend on static lib if shared isn't built
- Allow overriding release-mode defines for LOG/TLS
- Add SYSTEM=emscripten config
Add unsigned_length() for EMSCRIPTEN in boost/print/detail.hpp
Update scripts and generated sources for Emscripten

- Add REGAL_SYS_EMSCRIPTEN and REGAL_SYS_EMSCRIPTEN_STATIC defines
- Guard extension static EGL entry points on non-EMSCRIPTEN
Update core sources for Emscripten/WebGL
More EMSCRIPTEN/webgl fixes
Implement some GL_FOG getters