Changing force:apex:execute behavior

[WillieRuemmele]

We will be introducing a breaking change to the execute command.

Thanks to a contribution from @amtrack the command will now throw a non-zero exit code when the apex classes fail to compile or execute.

While we imagine almost everyone will be happy about this change, it is still a breaking change, so we're announcing it now, with plans to merge the above PR in the coming weeks. We think you'll understand us changing this behavior and believe this will improve everyone's workflows. If you don't agree with these changes, then make your voice heard below in the comments.