remove button functionality--belongs with results, one way or another, since it "sees" the table
results are a separated widget
bump
Refactored and turned inside out; now all of the widgets that used to
make up the search_pane are completely differentiated and take a manager
as an argument (not sure if I like the self-binding yet).
Work for kltm/amigo#69 kltm/amigo#104.