.sawfishrc: douban like and unlike
README.org: update readme
bin/douban: like and unlike
bin/emoji-to-unicode.pl: flush should change
bin/unicode-to-wx.pl: no need for weixin unicode after weixin v6.0
doc/FilesQueryable.xml: for emacs, no Makefile.am, only Makefile.in

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