Jit64: revert fmrx revert

The AVX revert was not supposed to touch fmrx.

Partially reverts 2fad2a3e88c5fbd76d897fcfed362233d3936d12.
x64Emitter: J_CC: use 32 bit offset automatically
Merge pull request #450 from Tilka/fmrx

Jit64: revert fmrx revert
Merge pull request #457 from Tilka/jcc

x64Emitter: J_CC: use 32 bit offset automatically
Fix OpenGL ES version detection.
Mesa report GLES version as "3.0" not "3.00"
Spec mandates X.Y versioning scheme, doesn't say how long the decimal place must be.
Merge pull request #469 from Sonicadvance1/GLES-version-detect-fix

Fix OpenGL ES version detection.
Fix the capitalization of "GameCube" throughout the project.