Doc fixes.

Doc fixes.
(strokes-mode): Defcustom deleted; replaced by minor mode def with
re-written function.
(strokes-while-inhibiting-garbage-collector): Comment out.
(define-stroke, strokes-fix-button2-command, strokes-insinuated)
(strokes-insinuate, global-set-stroke, describe-stroke)
(load-user-strokes, save-strokes, strokes-bug-address)
(strokes-click-command): Deleted.
(strokes-execute-stroke): Remove strokes-click-p case.
(strokes-describe-stroke): Remove strokes-click-p stuff.
(strokes-help): Fix.
(strokes-report-bug): Alias to report-emacs-bug.
(strokes-prompt-user-save-strokes): Modify format of the file.
(strokes-mode-map, strokes-unload-hook): New.
(strokes-buffer-name): Don't customize.