Added StaticWidget. placing widgets in ListItem is not working so well as 'slash' are dom and 'button' are widgets.
Must convert slashes to widgets.
Added slash button into StaticWidget and TemplateWidget - with right click menu and click handler. Need to hook ListItem up to send out branch out event.

Minor fix to on new branch selected event for ResourceDesigner.js
Hooked up _onBranchOut in ListItem.js