added support for glGetActiveAttrib
Merge pull request #150 from tildeleb/master

added tildeleb to Authors
Add a section describing the glew-1.10 branch
Merge pull request #152 from PolyFloyd/master

Add a section describing the glew-1.10 branch
fix ClipPlane; change type of equation arg from *float64 to []float64
merge change for ClipPlane