Add Token and State overlays
Add getTokenAt method
Fix create hint function from name
Add method to know if a given completion item is a string or an object
Activate continueComments
Fix beforechange event (no removed) and add javadoc
Remove static on() methods in editor overlay, change parameter type of
non-static ones
Add information in the gutter click events
Codemirror editor implements HasLineStyler
Use jseditor constants for gutters
Add gutter for breakpoints
Add style for gutters
Codemirror Document extends Abstract Document
Support for native completion