added frontend unit tests to roverService to check the single driver funtionality. Exspecially the updateRoverState notifications from the backend.
added frontend unit tests to roverService to check the single driver funtionality. Exspecially the updateRoverState notifications from the backend.

weiss19ja/amos-ss16-proj2,weiss19ja/amos-ss16-proj2,weiss19ja/amos-ss16-proj2,weiss19ja/amos-ss16-proj2