Added a step for upgrades.
Fix for a timing error in testing.
Fixed a locking bug.

This is a bug that would go undetected if an entry id was in lockstep
with the id of its lock.
Removed other-citations.
Removed Unit 4.
Bringing the element into view eliminates a sporadic test failure.
Prevent autoinsertion of bibliographical references.
Change to handle new version of make.
Prevent autoinsertion of bibliographical references.
Have selenium logs produced after each step.
Took care of some test failures due to recent changes in wed.
Dropped the `filter` field from transformation filters.

It was not used.
Added btw:example-explained, and visual mark for Pāli.

The btw:example-explained element is added and those btw:cit elements
which have Pāli text in them are now decorated with a Wheel of Dharma.
Removed the separator in bibliographical references.

Previously, BTW would add a comma right after the name of the work (or
author/date). This has been removed since there is no consistency in
the template I have.
Updated the version number required for wed.
Removed "selected" from the heads created for citations.
Modified toolbar to add Latin, remove Chinese and Tibetan.
New tests.
Better event handling for visible absences.

Recent changes in wed make it so that we should use the terminal event
handler and swallow mousedown events.
Removed cruft.