(woman-topic-all-completions, woman-mini-help): Fix

(woman-topic-all-completions, woman-mini-help): Fix
fallout from 2007-09-07 introduction of `dolist' when the list
actually was being manipulated in the loop.
(woman-Cyg-to-Win, woman-pre-process-region)
(woman-horizontal-escapes, woman-if-body, woman-unescape)
(woman-strings, woman-special-characters, woman1-hc)
(woman-change-fonts, woman-find-next-control-line): Use
`match-beginning' rather than `match-string' when the result is
just used as a flag.