Texture cache test with vertical graph titles
Implemented yAxis Header texture cache to save on font drawing
Testing fix for Pixel alignment issues
Added line/quad count to debug info
shutdown framebufferobject properly if used
Implemented font texture caching

This seems to be quite a bit faster and solves the wavy line problems on mac.
I implemented a switch so this can be turned on/off in gGraphView::DrawTextQue()

change use_pixmap_cache to false to turn it off.

I'll remove the graph title and yaxis bits and put them back as this has the
same effect
Removed the extra texture cache code for Graph vertical titles
Added selectable text antialiasing. Pie chart text overlay looked like crap
Add antialias setting to pixmap cache key, and show pixmap cache size in debug string
Use AntiAlias bit as a flag to draw text directly on Mac & Linux (PieChart Bugfix)
Debug Mode string needed pushing over due to font differences between Mac and Win/Linux
Offscreen rendering doesn't like pixmap cache, so disable it for snapshots
Compiler fix for last commit
MSVC2010 build fixes
Revert YAxis Ticker image cache, as it doesn't work rendered offscreen
Fix shutdown ASSERTION failure on Windows platform
added that yAxis ticker code back, but I made it selectable with usePixmapCache. It's much faster
Performance Improvement: Use texture caching with xAxis tickmarks and text when usePixmapCache is on
Invalidate x/yAxis texture pixmaps on window resize
Added appearance preference to switch Pixmap Caching on/off