Although only used in Debug mode, this showed up in a profiling
with a very significant amount of CPU cycles (in a state when
the viewer bogged down to 1 FPS because of drawing terrain,
but still - significant compared to the code that was being
executed (ie, 10%)).
This patch should bring that down from a few hunderd to one clock
cycle.
-Nametag bubble visbility is oddly inconsistent. May vanish with future planned UI merges...
-VBOs are PAINFULLY slow on ATI hardware. This repos self-compiled davep/shining-fixes branch, so I'll leave the ball in LL's court for now regarding that.
