replaced `col2hex` which seems to have gotten lost in a bad merge
pep8 fixes
pep8 fixes
converted import-critical PyQt calls to new style so that it will
not seg-fault when using PySide

Addresses issue #2378
pep8 fixes
second pass at catching the rest of the old-style signal/slot
connections.
change from mdboom
use new-style for PyQt as well as PySide
Merge pull request #2382 from tacaswell/new_stlye_qt

New stlye qt calls