Test coverage for cando.skilldriver

cando/      covered 65% (1022 of 2940 uncovered)
    skilldriver/      covered 93% (13 of 213 uncovered)
        skilldriver.py      covered 93% (13 of 187 uncovered)
        __init__.py      covered 100% (0 of 1 uncovered)
        browser/      covered 100% (0 of 1 uncovered)
        interfaces.py      covered 100% (0 of 24 uncovered)