Set exit code when setup:do-setup fails

[mblakele]

It would be nice if ./ml dev bootstrap would set the exit code to a non-zero value if setup:do-setup fails. That would allow shell commands like ./ml dev bootstrap && ./ml dev deploy modules to work as expected.

[grtjn]

ml.rb needs to be fixed like this on two places:

        result = ServerConfig.send command
        if !result
          exit!
        end

I think we just need to make sure that all commands return true if ok..

[grtjn]

@dmcassel are you working on this?

[dmcassel]

I'd intended to, but got pulled onto other things.