Thin Thin → Future

For now, when "start" action is performed and the server was already running, thin returns 1 (as it raises Thin::PidFileExist).

When using "thin ... start" into a service init script it means that such script is not LSB compliant since a LSB compliant init script should return 0 when performing the "start" action even if the server was already running.

So I suggest to add a new command "status" for Thin so it return 0 if it's running, 1 otherwise.
Then in the init script the "start" action could just invoke "thin ... start" if "thin ... status" returned 1.

Also, "status" action is a requeriment of LSB init scripts and it's needed when using service controllers (as HeartBeat) which invokes "status" action periodically to know the status of the server and up it again if it was down. Monit can also checks the service status by invoking "status" action for the init script.