acu164389 fix for RightApi::Resources#method_missing being infinitely recursive

example of bug:
> resources = client.resources(:deployments, '/api/deployments')
> resources.foo
SystemStackError: stack level too deep
Merge pull request #59 from rightscale/sapphire_14_08_acu164389_fix_resources_method_missing

sapphire_14_08_acu164389_fix_resources_method_missing