[oe] [meta-oe][dizzy]Update PyQt and related recipes

[Philip Balister]

Please pull these three patches into meta-oe/dizzy.

https://github.com/openembedded/meta-oe/pull/19

These lead to a working PyQt4, which will reduce the number of questions
I get about gnuradio-companion not working on dizzy.

1) I apologize for using the meta-oe repo instead of meta-openembedded.
2) If this is annoying, I can send via email like a sane person.

Philip