[PATCH] Fix line color setting on Qt4

Hello,
on matplotlib 1.0, using qt4agg backend, the 'edit curves and lines' option
doesn't works.
This is a quick patch that fix that problem.

It doesn't fix this snippet though:
(on lib/matplotlib/backends/qt4_editor/formlayout.py, FormWidget.setup)

elif isinstance(value, (list, tuple)):
    selindex = value.pop(0)

tuple don't have pop.
However with the patch this bug is not triggered anymore.

Thanks!
Riccardo

Fix-color-tuples-for-qt4.patch (2.1 KB)