Do not output log when errors are present.

[carloskelly13]

Since we parse and display errors in setStats(data) to the log with this.logText.log(formatOutput(stats)), the errors from the normal log duplicate the messages with extra output. The simple fix is to not log output when we have errors we parsed and are displaying.

Addresses #66

Success

Failure

cc @ryan-roemer @kenwheeler

[ryan-roemer]

@carlospaelinck -- Code looks good. Is there any case that we want to have partial normal output in addition to separate error output (just with error output removed)?

[carloskelly13]

@ryan-roemer I can't think of any. The regular output is the error plus a lot of module status stuff. Usually the log output is pretty verbose hiding the error forcing the user to scroll. Also not sure how we'd delete out the duplicate error consistently from the log text.

[ryan-roemer]

OK. SGTM!