Roadmap updates

Slowly and surely inching towards beta
Fix problem triggered by stale history list
Docs update
Parse TiddlyWiki classic wikitext as plain text

Too many errors if we try to parse it as TW5 wikitext
Update HTML deserializer to cope with TiddlyWiki classic and TW5 files
Docs updates
Remove obsolete content
Move the required template overrides into the tiddlyweb plugin
Update shadow tiddler handling to record source plugin tiddler
Add support for filtering shadow tiddlers
Correct pesky missing brackets
Style improvements
Fix HTML element parser to not pass capturing parenthesis in terminating regexp
Remove extraneous debugging code
Fix tiddler dropdown
Docs updates
Fix bug that was preventing pasting into edit textareas or input boxes
Improve word wrapping behaviour

Stops tiddler titles overflowing when they dont contain word breaks
Fixed problem with plugin precedence

We were unpacking plugin tiddlers in arbitrary order, and ensuring that
later plugins didn't overwrite shadow tiddlers from earlier plugins.

Now we'll allow plugins to specify a "pluginPriority" that determines
the load ordering. We also explicitly allow shadow tiddlers from later
plugins to overwrite shadow tiddlers from earlier plugins.

We're setting a base priority on the core plugin, since many plugins
will want to control their loading relative to it.
Added basic support for drag and drop of tiddlers

Links are now draggable. Dragging outside the browser will drop the
wiki text of the tiddler. Dragging to another TW5 browser window will
drop the entire tiddler, including fields.