Bump version to 24.0.91.

Regenerate AUTHORS and ldefs-boot.el.

Bump version to 24.0.90.

Regenerate AUTHORS and ldefs-boot.el.

* mh-e.texi: (VERSION, EDITION, UPDATED, UPDATE-MONTH): Update for

release 8.3.
(Preface): Updated support information.
(From Bill Wohler): Reset text to original version. As a historical
quote, the tense should be correct in the time that it was written.

* mh-e.el (Version, mh-version): Update for release 8.3.

disabled xwidget bg erase which appears safe and looks better. test f…

…or a while.

* NEWS, MH-E-NEWS: Update for MH-E release 8.2.93.

* mh-e.el (Version, mh-version): Update for release 8.2.92.

* NEWS, MH-E-NEWS: Update for MH-E release 8.2.91.

minor cleanups and doc

* mh-e.el (Version, mh-version): Update for release 8.2.90.