* Revisions can be opened either in the current page or in a new window/tab.
* Added ability for a read-write notebook to contain read-only notes. This supports showing read-only revisions.
* Fixed updatedb.py to properly load the anonymous user.
* Updated initdb.py and updatedb.py to deadl with new-style /notebooks/notebookid?note_id=noteid wiki links.
* Made Persistent copy the revisions_list on each revision update so different revisions don't share lists.
* Prevented Note from updating its revision twice upon construction. Now it's only updated once.
* Work-around for nasty urlparse() caching bug related to unicode strings that cherrypy barfs on.
* Added optional revision flag to various controller.Notebooks methods to allow opening of a notebook with a particular note revision displayed.
* Refactored some of validator decorator to use clearer variable names internally.
* Validator decorator now supports treating arguments with default values as optional.
* controller.Notebooks.default() takes an optional note_id argument.
* controller.Notebooks.contents() takes an optional note_id argument.
* Wiki.js now makes use of these new controller APIs.
* Editor.js now takes a notebook_id argument to its constructor so it can properly make links.
