FIX Spies with method param names that clash with internal vars
Final classes cannot be mocked; a helpful error is raised
argOfTypeThat allows use of matchers with type-hinted params
Merge pull request #23 from rowanhill/typecoercion

Type coercion of matchers via mocks
Merge branch 'master' of https://github.com/hafriedlander/phockito
add return type to phockito verify builder else it defers to mixed