Marked up draft of the manual.
Fixed items from the Introduction, per markup.
FIXME for introduction.
Marks where I made some changes.
Merge branch 'master' into docs.
Radically shortened the introductory node: moved information about ASDF
history into FAQ.
Changed "otherwise installed ASDF" to "loading ASDF from source."
Many more nodes.

Nodes for just about every section, and many subsections, as I felt
appropriate.
Quick kludge to find functions exported from ASDF and not documented.

Checks for constructs that index documentation for a function name.  So
this will also find functions that are documented, but for which there's
no index entry.
Added some index entries and some FIXMEs.
List of exported symbols without a function definition.
More index entries.
Revised the introduction to the object model chapter.

Also, in passing, fixed the spacing after the macros for lambda list
keywords.
Rewrite description of TEST-OP.
Typo pass and corrections from Fare.

Partial corrections from Fare to TEST-OP discussion.
Cut down the TEST-OP discussion in FAQ.

It's now redundant with the definition of the TEST-OP built-in operation
class.  I don't want to have to maintain two separate discussions of the
same material.
More improvements to TEST-OP discussion.
Some overfull lines fixed.
Renamed nodes to avoid duplicate names.
Removed obsolete commented-out text.

Was waiting for reality check from Fare.