Start replacing the home-grown Timer class with wxStopWatch which does the same.
Replace Timer with wxStopWatch and move ScopeTimer to wxutil.
Don't let splash screen stay on top of *everything*.
Update VBO only if the patch tesselation actually changed.

Unconditionally updating the VBO eats more than 6% of the whole frame
processing time.
Remove Profile.h/.cpp, this is not needed anymore.
Remove test project from VC++ solution.
Remove unused XYWnd member.
Merge changes from master.
Merge remote-tracking branch 'origin/post-2.0'
Remove Profile.h/Profile.cpp