`slic init` will output errors until forced to quit when run before `slic start`

[JPry]

If the command slic init is run prior to slic start, endless errors will be generated until the process is stopped with Ctrl + C.

[composer:common] 
[npm:common] 
[npm:target] 
[composer:target] 
[composer:target] service "slic221" is not running
[composer:common] service "slic240" is not running
[npm:common] service "slic251" is not running
[composer:target] 
[composer:common] 
[npm:common] 
[npm:target] service "slic244" is not running
[npm:target] 
Error response from daemon: network slic240_slic not found
Error response from daemon: network slic251_slic not found
Error response from daemon: network slic244_slic not found
Error response from daemon: network slic221_slic not found
Error response from daemon: network slic221_default not found
Error response from daemon: network slic240_default not found
Error response from daemon: network slic251_default not found
Error response from daemon: network slic244_default not found
Error response from daemon: network slic251_slic not found
Error response from daemon: network slic221_slic not found
Error response from daemon: network slic244_slic not found
Error response from daemon: network slic240_slic not found
Error response from daemon: network slic221_default not found
Error response from daemon: network slic251_default not found
Error response from daemon: network slic244_default not found
Error response from daemon: network slic240_default not found
Error response from daemon: network slic240_slic not found
Error response from daemon: network slic221_slic not found
Error response from daemon: network slic244_slic not found
Error response from daemon: network slic251_slic not found
Error response from daemon: network slic240_default not found
Error response from daemon: network slic244_default not found
Error response from daemon: network slic221_default not found
Error response from daemon: network slic251_default not found
Error response from daemon: network slic251_slic not found
Error response from daemon: network slic240_slic not found
Error response from daemon: network slic221_slic not found
Error response from daemon: network slic244_slic not found
Error response from daemon: network slic221_default not found
Error response from daemon: network slic251_default not found
Error response from daemon: network slic240_default not found
Error response from daemon: network slic244_default not found
Error response from daemon: network slic251_slic not found
Error response from daemon: network slic244_slic not found
Error response from daemon: network slic221_slic not found
Error response from daemon: network slic240_slic not found
Error response from daemon: network slic221_default not found
Error response from daemon: network slic251_default not found
Error response from daemon: network slic244_default not found
Error response from daemon: network slic240_default not found

The numbers will keep changing and the errors will continue until forced to quit.

If slic start has not been run, slic init should instead fail gracefully and prompt the start command to be run first. Or even better, interactively to run the start command, and then execute it before finishing the init process.