Correct test to reflect HTML5 corrections
Clarify use of tiddlers.link and sense of "friendly".

The htmlserialization was constructing tiddlers_url where it could
have been using tiddlers.link.

Templates were doing an if on "friendly" which is now redundant
as there are different templates for friendly and non-friendly.

The handling of container information for tiddlers.is_revisions
was broken.
Further hypertextuality

* Add links to alternate representations to tiddler view[1]
* Add "up" or "collection" link to views that can have it
* Correct containerization for revisions

We don't add links to alternate representations for single bags and
recipes because ControlView breaks extension based access to those.

[1] See https://github.com/bengillies/tiddlywebplugins.form/pull/5