merge: rewrite-docs

I've omitted docs/*.org from this merge, as there is still work left to
do there, but I am pushing the module docs early so folks can benefit
from the new docs sooner.

lisp/lib/help.el

@@ -749,3 +749,4 @@ Uses the symbol at point or the current selection, if available."
                                    (format "%s.el" filebase)))
             collect it)
    query "Search loaded files: "))
+