Throw out UKCrashReporter for now

I'll probably replace it with tcurdt/feedbackreporter in time.
Currently it only produces compile warnings (which are now
errors), and I don't have an endpoint to submit the crash
reports to anyway.
Why on earth was this an NSNumber ò.o
This doesn't even return an NSArray...
Guard method that has been added in OSX 10.6

Otherwise compilation complains that we are redefining
a method in a category
This seems to be the way to use NSFastEnumerator nowadays
Disable warnings in MILibs