quick clean of the drivers file

Signed-off-by: Simon Thulbourn <simon+github@thulbourn.com>
removes before, there seems to be a bug in codegangsta/cli#158

The context is wiped after the "Before" handler is ran, so the Action
handler's context is empty...

Signed-off-by: Simon Thulbourn <simon+github@thulbourn.com>
makes the name optional for stop/start/ssh/upgrade

Signed-off-by: Simon Thulbourn <simon+github@thulbourn.com>
workaround for codegangsta/cli#158

Signed-off-by: Simon Thulbourn <simon+github@thulbourn.com>