Routing either V1 or V2 using a Facade. By default, V1 is enabled
but can be deactivated by a confflag.
Pecan controller for Lease created using WSME i/o validation
Implements blueprint: pecan-wsme
Change-Id: I9047abece78632daa13fdebfea9fb8aaa3c60981
eb0c81f95a