Add wrapper for fudge to allow mock checks

Add wrapper to add mock checks on fudge, to prevent
the mock from getting out of sync with the real object.
Fix bug on fudge wrapper
Refactor keychain tests and make them use the fudge wrapper
Import getMock directly
Refactor method name to remove wrong plural keys
Merge pull request #20 from OpenPassword/feature/Add-wrapper-for-fudge

Feature/add wrapper for fudge