Merge branch 'master' into develop
New item from 'enter' now matches previous dom tag type
Use ctrl+space to cycle between element styles
Escape to cancel editing
Convert text to buttons
Some minor fixes to tags
Convert to global element dictionary for attribute handling
Initial list edit support based on child prefix
Handle child prefixes for lists
Add blockquote button
Handle creating a new list or removing items from lists
Merge branch 'feature/list_support' into develop
Merge branch 'develop' into gh-pages