improvements on edit-toolbar and dropdowns

also included changes of branch 'feature/auto-complete-list' to generate yuidocs

restore status of open column navigation

- [x] finish the code
- [x] gather feedback for my changes



| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| Tests pass?   | none
| Fixed tickets | none
| Doc           | none