Note that now ryu uses /etc/ryu/ryu.conf. The previous install path
(/usr/etc/ryu/ryu.conf) doesn't fit to FHS.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
To make the further integration into IaaS OSS (OpenStack and
CloudStack) easier, we switch to Apache 2.0 license.
ryu/app/wsapi.py is still under GPL3 or later. We replace it later.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>