
oslo packages got away from namespaces while ago. Update ryu to use the new namespace-less import path. Bump oslo.config requirement version accordingly. Reference: https://blueprints.launchpad.net/oslo-incubator/+spec/drop-namespace-packages Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>