add translation for flashMessenger + unit test
Merge branch 'master' of github.com:vaconsulting/zf2 into feature/translate-flash-message
Merge branch 'feature/translate-flash-message' of git://github.com/vaconsulting/zf2 into feature/3559
Fix test failure in PhpRenderer tests

- Due to change in PHPUnit, can no longer have top-level Exception as an
  expected exception
Merge branch 'feature/3559' into develop

Close #3559