Rename "dump" command to "print" command

Being pan-cultural is hard.
Add type="modules" support to the info widget

With type="modules", the info widget outputs a list of the currently
loaded modules, grouped by module type.
Extend the fieldlist widget to retrieve all fields used across all tiddlers
Add the new ConfigInfo system tiddler
Docs updates
Use more specific styles for the field editor stripes
First take of the ConfigInfo panel

It displays internal configuration information for debugging and
learning about TiddlyWiki. Also introduces a way of interleaving
documentation tiddlers (complete for tiddler fields, more module type
docs to come)