Add Spinach BDD

Big caveat, i changed the tasks, on account of features being used by both spinach and cucumber. I also didn't get the reporter for spinach working.

-spinach tasks use parallel:spinach
-cucumber tasks uses parallel:cucumber (rather than parallel:features)
-still missing tests/functionality for spinach formatted logger
-directory for shared things is called "gherkin_bdd" on account of gherkin having namespace issues with the gherkin package (wouldn't allow me to load the parser :) ).