Merge pull request #45 from unknownbrackets/master

Delete FBOs in fbo_destroy().
Use fixed DPI on Symbian. New devices seem to lie about DPI.
Fix spinny buttons animation on Qt and Blackberry front-ends.
Merge pull request #46 from xsacha/master

Fixes for Symbian and Blackberry
Move PPSSPP window init out of here because native is meant to be generic.
Now that only mobile platforms use this code path, remove the desktop support
Merge pull request #47 from xsacha/master

Qt update
Add mutex, or wait don't work correctly
Merge pull request #48 from Xele02/master

Mutex cond_wait not working
Use temp path from Qt. Fixes windows.
Quick fix for missing QDir
Use RunFast VFPv2 mode on Symbian.
Set depth and color mask before clearing.
Add a timeout event.wait_for() method.

Not exactly like std::condition_variable, but similar.
Merge pull request #49 from unknownbrackets/event-timeout

Add a timeout event.wait_for() method
Fix for FBO on iOS devices (from rock88).
Buildfix for Mac.
Arg, buildfix for Mac.