Rework PING_COUNT once more

Our unifying of Cygwin/Linux ping implementations broke BSD. Here is a
three-headed implementation, one for OSX and the other for Linux/Cygwin. The
issue is Cygwin and OSX were incompatible, Linux played nicely with both.

Already out for testing, hopefully works...
Ship aapt.exe with execute permissions

We take care of this in the script, but we wouldn't have had to if I had
noticed this earlier.
Hopefully fix bug with cygwin patching

That space meant we were calling an empty patch argument.