finish converting doc markup system from strings to keywords.
tidying
implement conditional latex and text documentation in maxdoc.
doc edits
maxima interface to creating maxdoc entries.
better wrapping and paragraphs in maxdoc
work on maxdoc and examples and many other minor edits.
more fixes to doc system. refactoring in examples.lisp, etc.
	new file:   testall1.mac
work on maxdoc:defmvar, and rename to mdefmvar. apply it
to all maxima specials that I could find.
old changes I did not commit.
fixed doc text error.
build docs