GSdx: Fixed a missing clut offset which broke Disney's Golf.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5611 96395faa-99c1-11dd-bbfe-3dabce05a288
GSDX: Fixed GetTextureMinMax's vertex tracer interaction properly and added some comments.

It wasn't the suspicious code, that actually seems to be correct.  The rempty() case should now be unnecessary except in case of bad register settings, but that's outside of our control so it needs to stay until code's added for that case.  A console warning would be appropriate.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5612 96395faa-99c1-11dd-bbfe-3dabce05a288
GSDX: Implemented CLUT temporary buffer wrapping by mirroring writes and hopefully fixed all CSA related bugs.  There are fewer asserts on register values in the code now.

I'm only about 75% confident in this code.  Games might be broken.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5613 96395faa-99c1-11dd-bbfe-3dabce05a288