* C/fig/mainwindow-pic.png: new file
* C/fig/mail-druid-pic.png: new file
* C/fig: New directory, for figure graphics.
* C/apx-gloss.sgml: new file. glossary. thx. to kevin from chicago.
* C/usage-setup.sgml: More accurate description of druid, and
moved to mail section-- see usage-mail.sgml entry. This is a new
location for this entity, and it may move more later.
* C/usage-mainwindow.sgml: altered description of starting
evolution. added screenshot for main-window picture.
* C/usage-mail.sgml: added screenshots, added coverage of setup
druid and put it into get-and-send section, which is probably not
where it should stay. Also started filter druid coverage and
clarified examples, esp. in Bcc: section.
* C/usage-contact.sgml: Clarified examples.
* C/preface.sgml: rewording of "what is" and "about book" sections.
* C/evolution-guide.sgml: added glossary entity APX-GLOSS, altered
phrasing in part intros, changed order of Setup-assistant section.
* C/config-prefs.sgml: changed wording, removed ref. to re-running
setup assistant.
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