.emacs_d/lisp/bhj-defines.el: add a command to help on qt functions
.emacs_d/lisp/bhj-set-key.el: add qt help key
.sawfish/start/ww: show the full path in ps.pl
bin/bhj-help-it: fix qt help, so that properties can be shown

Signed-off-by: Bao Haojun <baohaojun@gmail.com>