Stop propagation of clicks in XBlockStringFieldEditor
Fix collapsed subsections expanding when creating or deleting subsections
Prevent clicking in display name textbox from toggling expand collapse
Add test for published title when not live
This commit implements STUD-1490, allowing creation of components
on the container page. It also enables the delete and duplicate
buttons now that new content can be created that would benefit.
Note that it also creates shared functionality for adding components,
and refactors the unit page to use it too.
