.equals -> .equal?

[Doug Evans]

Blech.

I messed up the spelling of .equal?

2009-09-01  Doug Evans  <dje@sebabeach.org>

	Pmacro .equals -> .equal?
	* pmacros.scm (-pmacro-builtin-equal?): Renamed from
	-pmacro-builtin-equals.  All callers updated.
	(pmacros-init!): Rename .equals to .equal?.
	* doc/pmacros.texi: Update.
	* testsuite/pmacros-1.test: Update.