Workaround AESendMessage() hanging on OS X 10.8.2

OS X 10.8.2 contains a bug where AESendMessage() hangs for some users:
http://mjtsai.com/blog/2012/10/04/aesendmessage-bug-in-mac-os-x-10-8-2/
http://brian-webster.tumblr.com/post/32830692042/a-workaround-for-aesendmessage-hanging-on-os-x-10-8-2

It might make sense to rewrite EyeTunes to use `typeKernelProcessID` instead of `typeApplSignature` as a workaround.