Fix warning in sceNet.cpp.
Max frameskip as 8 and code cleanup
Fall the depth test to the simplest and correct one
Fix divide by 0 bug
Merge pull request #2908 from raven02/patch-3

Fall back the depth test to the simplest and correct one
Merge pull request #2907 from raven02/patch-2

FBO to memory : Llimit frameskip to 8 and code cleanup
Merge pull request #2902 from thedax/sceNetWarningFix

Fix warning in sceNet.cpp.
Merge pull request #2890 from thedax/master

Win32 UI: Fix F5(Buffered rendering hotkey) behaviour.
NewUI: Allow Unlock CPU Speed to be set to 0 with the slider bar. If the minimum is kept at 1, it can't be turned off otherwise.