Fix some trailing-slash breakage, OS-API is explicit about that
Convert faults to return an Exception subclass
Piston's rc from which fault is modeled doesn't do that; however, weprefer doing things the Django (rather than the Piston) way and makefaults be an Exception subclass.
Piston may not do that but it actually gives us all the tools to do it,...
Add Limit handler
Be more explicit about ServerHandler's allowed_methods
Add Shared IP Groups handler
Add backup schedule handler
Add Iimage handler
Add Flavor handler
Initial commit