RSX : delete PBO when exit thread
Work on RawSPU: interrupt mailbox

Achievement unlocked: run spu_test!
RSX: Use blit for MRT as well
Added some lv2 syscalls for sys_prx
Gameviewer : fix wrong category
Small fixes
Log error when flag 0x3c/0x3d EDAT files detected
Add EDAT_FLAG_0x3C/0x3D
Some freezing fixed
Logging system rework

* use one central unified log with channels/priorities ad-hoc listener registration and de-registration
* disable buffering by default
* add multi-threaded ringbuffer implementation
* use buffered listener for the gui (using the ringbuffer)
rename conlog gui file and set the logbuffer-consumed flag sooner
use a more compact method to add and remove listeners t o all channels
use only one set of logging macros instead of two and don't use free() as a function name