Updated menu editing
Updated to remove zombie views
Updated editorView to fix bug with dataLoaded event
Merge branch 'editor-view-refactor' of github.com:adaptlearning/adapt_authoring into block_crud

Conflicts:
	frontend/src/core/editor/views/editorArticleEditView.js
	frontend/src/core/editor/views/editorArticleView.js
	frontend/src/core/editor/views/editorSidebarView.js
	frontend/src/core/editor/views/editorView.js