0.6.1 released

[Henrik]

I've reevaluated the plan a little and I plan to speed up the ARM JIT more (it is nowhere near complete, for example, it still interprets all FPU instruction) more before I try to implement multithreading. Speeding up the JIT will benefit all devices, both single and multi core.

The reason is that multithreading (putting the graphics on a separate thread) will make many parts of the code more complicated and harder to change, which is not a good thing when it's this early. JIT though is mostly isolated and doesn't really affect the complexity of the rest of the emulator at all.