make it possible for MRJob to not stream output

[coyotemarin]

Sometimes people want to run an MRJob solely to create intermediate output on S3, or for testing. The -q (quiet) option should turn off the part of run_job() that streams job output and prints it to standard out.

[bretthoerner]

I added a --no-streaming-output option that works for me. I didn't want to use -q because I consider the data output different from verbosity. I sometimes want/need the verbose mrjob output even though I don't want the results of the job printed to my terminal (much less downloaded).

bretthoerner@b93ede4

[coyotemarin]

Yup, you're right, -q should really just suppress logging.

Thanks for the pull request! I'm renaming this option to --no-output, for brevity.

[coyotemarin]

Fixed in v0.2.2.