Merge pull request #1031 from unknownbrackets/perf

Add delays in some timing funcs that games tightloop
Remove some now unnecessary dependencies for Symbian.
Fix Qt for Blackberry. Remove unnecessary dependencies for Blackberry and Windows.
In Qt, use mobile UI for anything non-Linux due to threads issue. So, Windows Qt UI runs fine now.
Android build fix
Merge pull request #1032 from raven02/patch-6

Android build fix
Optimize thread ready queue pop_front().
Small optimization to sceKernelRotateThreadReadyQueue().