Add mapped documents to Objective tree
Look ma, no hands!

* dynamically create (almost) all widgets on Program page
* dynamically create People/Documents widgets on all pages
* add "loading"/"loaded" events to TreeView
* fix linking People/Documents to Directive instances
Remove now-unused templates
Add disclaimer back to Objectives and Controls widgets
Merge pull request #246 from reciprocity/feature/objective-document-mapping

Add mapped documents to Objective tree