removed annotation @author
added Tester\FileMock
Merge pull request #137 from dg/pull-filemock

added Tester\FileMock
Runner: checks if file or directory exists
travis: added failing test
Added output handlers file output [Closes #135]
Added --stop-on-error options [Closes #110]
Job: $arguments changed from string to array (BC break)
tests: used PHP 5.4 syntax in some tests
Dumper::dumpException() writes line of source code