Add angular-tree-control
Add bootstrap sidebar

http://startbootstrap.com/templates/simple-sidebar.html
Add backend for recursive tree listing as json
Add filetree controller and service
Implement file tree using tree-control with saved state
Add folder to backend tree response
Include tree-control css
Implement tree-control sidebar file tree :)
Fix up CSS for filetree
Handle old deeplinks
Move filetree css out of editor.css
Generalize filetree to ask for any folder
Remove unnecessary #wrapper div
Re-indent whitespace in editor.html
Expand/collapse filetree
Animate tree expansion/collapse
Add filetree controller tests
Flesh out filetree service tests
Remove "/editor" from editor path

It seems redundant.
Add filetree e2e test