Added callback matcher
Removing 2.4 dependency on property accessor
Removing unused use statement
Merge pull request #11 from defrag/fix/removing-2-4-deps

Removing 2.4 dependency on property accessor
Resolving conflicts
Merge branch 'norzechowicz-callback-matcher'

* norzechowicz-callback-matcher:
  Added callback matcher
Callable can match change
Merge pull request #12 from defrag/fix/callable-can-match-fix

Callable can match change