winex11: Change the priority of evaluated window styles to workaround a Metacity bug with handling of utility windows.

This can happen e.g. when suddenly color keying is activated and at
some stages we don't know if we will need conversion at PBO creation
time.

wined3d: Use the render target its palette when performing a texture copy as the texture doesn't hold one.

Apparently nvidia cards do not like 3.0 vshader + fixed function fragment
processing, so accept their result. This has no implementation implications
for Wine because we need the code to support the 3.0+ffp combination to
handle 3.0+1.x and 3.0+2.0 shader combinations too

This sends EC_COMPLETE notifications to the application after a graph has
finished running for the second time.