Add tests for multiple stubs with Arguments::any()
Fix stubbing with a AnyInstance argument after having stubbed with a specific instance argument
Fix stubbing without arguments after having stubbed with an AnyInstance argument
Allow for many more combinations of overloading stubs with various wildcards

- Allow multiple stubbing with anything arguments in different positions
- Allow adding a stub with a specific instance argument after having added a stub with an any instance argument
- Ensure that stubs with more specific arguments get priority over more generic ones
Fix warnings in targets created from the iOS Cedar Spec Suite template
Merge pull request #213 from pivotal-brian-croom/fix-ios-spec-suite-warnings

Fix warnings in targets created from the iOS Cedar Spec Suite template
Merge pull request #211 from pivotal-brian-croom/contain_nested_and_subviews

Contain nested and subviews
Merge pull request #210 from pivotal-brian-croom/multiple-stubs-with-anything

Multiple stubs with anything
contain(an_instance_of(Class))
Support contain(...).as_a_key(), contain(...).as_a_value() for use with dictionaries