Updated bower.json to depend on the offical repo for TinyMCE
Bumped version for 70bbd6a544
Made the tests pass

Changed :70 to use .toBeFalsy() instead of .toBeUndefined() because the
instance could be null || undefined; either way the instance has been
deallocated
Bumped the tinyMCE version number

Added Firefox to the karma tests
FAILING TESTS!