adds --host command line option to [sails lift] and adds relevant usage ...

PREV: $ sails lift --port 9000
              $ sails --h
                [--dev]                        in development environment 
                [--prod]                       in production environment 
                [--port 9000]                  on port 9000 
                [--verbose]                    with verbose logging enabled 


NOW: $ sails lift --host 0.0.0.0 --port 9000
        $ sails --h
          [--dev]                        in development environment 
          [--prod]                       in production environment 
          [--host 0.0.0.0]               at host 0.0.0.0 
          [--port 9000]                  on port 9000 
          [--verbose]                    with verbose logging enabled 


I found this to be a quick convenient change especially when testing sails apps on locally networked mobile devices.

Maybe it will be of some use.