A few itmes deserve to be mentioned:
- use apg to generate random password when install.
- generated password won't get updated when upgrading / reinstall.
- add more to description to make lintian happy.
- generated Makefile.am don't need to be listed in debian/copyright.
- the way of installing systemd service is changed. Thanks to advice
from Boyuan.
- multi-arch can be archived without specific setting in debian/rules
- add debian/watch file
Note:
Debian/Ubuntu users may have to `sudo rm -f /etc/shadowsocks` before install
the new `shadowsocks-libev` package.
For library user, the pkg-config package is renamed to `shadowsocks-libev` but
the library name is still the `libshadowsocks` (use `-lshadowsocks` to link)