Add a rounded popup widget in the iOS style
Add Popup example
Rename Popup to BubbleView
Rename QPopupWidget to QBubbleView
Cleanup QBubbleView event tracking and animation
Use enum for anchor position
Remove bubble view animation
Use default layout margins in bubble view
Fix radius lower bound check
Add Include to bubble view example
Use activate_proxy method to setup BubbleView
Fix according to pep8 and Chris's suggestions
properly handle change types in operators
Fix close event definition and stylistic corrections
Merge pull request #14 from nmichaud/feature-bubble-view

BubbleView popup widget
Update initial visibility logic
Merge branch 'master' into item-views