PEP8 clean up of qtw/Widgets.py, including a couple of bug fixes like missing vars
PEP8 clean up of qtw/Widgets.py, including a couple of bug fixes like missing vars

stscieisenhamer/ginga,pllim/ginga,naojsoft/ginga,ejeschke/ginga,ejeschke/ginga,stscieisenhamer/ginga,ejeschke/ginga,pllim/ginga,pllim/ginga,stscieisenhamer/ginga,naojsoft/ginga,naojsoft/ginga