Make SIP recipe work with homebrew-installed PyQt:
Make SIP recipe work with homebrew-installed PyQt:

1. Change directory to look in for PyQt submodules to be cfg.pyqt_mod_dir - I suspect the fact that default_sip_dir worked with macports means that the macports version of pyqt wasn't installed correctly.

2. since the submodules found in pyqt_mod_dir are not directories but Module.so, strip .so to get the right module name

metachris/py2app,metachris/py2app,metachris/py2app,metachris/py2app