initially set default background color if none specified
glviewer doc
more doc
added large test case for  PDB 1B5S
cylinder cache
stick render cache (broken)
more stick render
more work on stick render
more work on stick render
Rotation matrix fixes
cached stick render
working on closed sticks
capped stick render progress
improved stick render (still working on speed)
stick render
different test case
Stick draws proper caps
Single bonds flag
not working
stick cylinder cache changes