bump GLUT, GetC, OpenGL, SDL
Merge branch 'master' of https://github.com/JuliaLang/METADATA.jl
bump GLUT, SDL
bump OpenGL
bump SDL
bump GLUT
Bump DataFrames SHA1
bump Tk, Cairo
bump OpenGL packages
Merge branch 'master' of https://github.com/JuliaLang/METADATA.jl
bump SDL
bump OpenGL
bump GLUT
bump sha1 hash
bump SHA1 for ICU
bump OpenGL packages
Bump DataFrames SHA1
DecisionTree: use git:// instead of https:// URL
Add BinDeps and bump Tk/Cairo for windows binaries
Bump Tk