add messages for forever and pm2
add messages for forever and pm2

Add error messages to return with pm2 and forever for the error
both are fatal errors.

nlindley/modulus-cli,XervoIO/cli,XervoIO/cli,onmodulus/modulus-cli,XervoIO/cli,onmodulus/modulus-cli,nlindley/modulus-cli,onmodulus/modulus-cli