Add "info" widget for displaying information about tiddlers

Currently only supports displaying the changecount of a tiddler
Add support for deleting tiddlers
Update TiddlyWeb syncer

Includes the beginnings of support for deleting tiddlers. It also
allows the recipe to be optional.
Docs update
Update server command to be compatible with the TiddlyWeb syncer

Now TW5 in the browser can use the TiddlyWeb syncer to talk to TW5 on
the server
Add new clientserver edition

Runs an instance of TW5 on the server and another in the browser