.sawfishrc: some keys for rdesktop
bin/adb-add-weixin-friends: a funny script to add friends
bin/adb-get-logs: move /data/core to the end, so that I can Ctrl-C
bin/adb-screenshot: allow to specify where to save the screenshot, and how (using bmp?)

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