Crashes

Fixed bug #387 (a crash) and bug #389 (an abort), both caused by some sort of flakey and unreliable behaviour across different versions of Mac OS X, different versions of the development tools, and different versions of Synergy Advance. Basically I had no choice but to completely remove the anti-corruption features which is a shame because I spent so much time developing them and they have worked well up until now; but now there are just too many variables and the whole thing is just too brittle and fragile. Probably better off without the protection.