Merge pull request #1 from andykorth/master

Fixed a few minor typos, removed superfluous constants from glfw.
Changed readme to reflect removal of Glfw.True.
Merge branch 'master' of https://github.com/antonijn/Pencil.Gaming-GLFW2
Fixed Glfw.GetMouseButton implementation, removed other superfluous GLFW constants.
Use Glfw.GetVersion to get the version now.
Fixed Glfw.Init implementation.
Renamed GLEnums to GlEnums.
Added Gl.Utils class and image loading utility.
Added opengl utility to README.
Fixed README links.
Fixed Gl.Utils link in README.
Changed callvirt to call in Release build, increasing performance.
Added call_to_callvirt script to post build event.
Initial commit
Merge branch 'master' of file:///home/antonie/Programming/Pencil.Gaming/Pencil.Gaming_backup
Renamed project to GLFW2
Added GLFW3 support.
Updated README after GLFW3 implementation.
Fixed README links for new repo.
Deleted .gitignore to make binaries visible.
Updated after gitignore removal.