* new toolbar button for attaching a file
* button opens new Upload_pulldown() for uploading a file
* began controller.Notebooks.upload_file() to process the upload
* both tools/initdb.py and tools/updatedb.py set link ids appropriately, rather than just leaving them all as "new"
* both tools/initdb.py and tools/updatedb.py set certain links to use https if configured as such in config/Common.py
* tools/initdb.py no longer creates a default "witten" user
* Added target="_top" to links that should replace the top-level window, and updated client code to ignore links with targets.
* Removed form_base_url from Editor.js, as https URL is now tacked on by initdb.py/updatedb.py instead.
* 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.
Dan Helfman