Code review comment for lp:~kiithsacmp/stellarium/glexperiment

I tried to max it out to get as low FPS as possible.
I enabled all plugins, grids, markers, etc.
(The result looks crazy: http://ompldr.org/vZmFnaQ/snapshot1.png)

trunk: 23-24FPS
refactored-GL2: 11.5-11.7FPS
refactored-GL1: 13-14FPS

There is quite large slowdown here, but again nowhere near 75>15FPS.