Initial WIP commit of a list control
WIP commit
WIP commit
wip
Merge branch 'master' into feature-list-control
Better destruction behavior for Looper and Conditional
WIP
Update the ListControl and its Qt implementation.

This fixes up the code to be more than just WIP commit. The fonts should
be reasonably handled and the overall implementation should be ready for
merge barring any show-stopping bugs.
Merge branch 'master' into feature-list-control
Fix typos in docstring
Merge pull request #251 from enthought/feature-list-control

Feature list control