ENH: Add sys_info debug helper
FIX: Error
ENH: Add OpenGL info
STY: Better format
FIX: Better output
FIX: Ensure OpenGL context exists
FIX: Dont use glut
FIX: Missing newline
FIX: Fix test for glut sys
FIX: Import local gl
FIX: Use correct constant
FIX: Fix after rebase
FIX: Return string, dont print
Merge pull request #108 from Eric89GXL/debug-info

ENH: Add basic helpful debug info