Allow viewing logs for specific processes

[adibsaad]

trafficstars

Add an option to specify which process to view logs for e.g.

overmind echo web

Also, would be nice to have logs be an alias for echo.

[DarthSim]

Hey Adib!

echo is only meant for streaming the daemonized process output to stdout. It doesn't have history and stuff. connect is more suitable for viewing the logs.