Fix OpenGL video backend when using "render to main" on Windows.
Fix the ARM JIT's subfic implementation.
Merge pull request #495 from Sonicadvance1/ARM-fix-subfic

Fix the ARM JIT's subfic implementation.
Fix ARM Jit's subfic when d != a.
Missed this path previously, Crazy Taxi hits it.
Merge pull request #494 from Armada651/master

Fix OpenGL video backend when using "render to main" on Windows.
Merge pull request #496 from Sonicadvance1/fix-subfic-round2

Fix ARM Jit's subfic when d != a.
Remove g_pWindowHandle.

Now that the EmuWindow is gone we don't need the global anymore. The Host should provide a window handle for the renderer.
Update documentation.