anchor.diff:  
   * Basic features:
   ** undo/redo
  -** search/replace
   
   * Multiple colored/labeled cursors (medium).
  -
  -* Dynamic editor height based on content (easy).
   
   * Right-click menu support (medium).
   
  
positive.code: ** Insert HTML at a particular position specified by the native data model
  ** Event callbacks for inserts, deletions, changes, and selections
  ** Command and status support for text attributes e.g. to support a toolbar
  
  * A skinnable toolbar that leverages the editor API (medium).
  
  
negative.code: 
  * Separate CSS (internal vs user editable) to make skinning and integration
  simpler (easy).
  
  * Search/replace
  
  [[commercial_features]]
  == Commercial Features (Future)
  