Log Message:
Add support for Darwin. When on Darwin use different source distfile.

Split out parts of Makefile. Now use new
../../x11/py-qt3-base/Makefile.common.

Improve COMMENT to better describe this package.

Improve DESCR to better describe this package.

(PyQt is a set of Python bindings for the Qt toolkit.  The
py-qt3-qscintilla package provides the bindings for QScintilla,
the port to Qt of the Scintilla programmer's editor class.)