a quixotic journey to a passing travis build

Squashed commit of the following:

commit 379d19d38da69a25f2ddf0b802a2e1c9cd2e40df
Author: phinze <paul.t.hinze@gmail.com>
Date:   Fri Apr 5 02:04:56 2013 -0600

    concat out+err?

commit 3414556d5e494c89a1b91322be666df9933d29f2
Author: phinze <paul.t.hinze@gmail.com>
Date:   Fri Apr 5 01:59:06 2013 -0600

    switch to capture_subprocces_io

commit d50a878bf20892db4d136530ff64e5cb94fe3ae4
Author: phinze <paul.t.hinze@gmail.com>
Date:   Fri Apr 5 01:42:41 2013 -0600

    ensure later version of minitest

commit 49078c48b024e1f1ed1b5d9785de60ec050ee261
Author: phinze <paul.t.hinze@gmail.com>
Date:   Fri Apr 5 01:30:12 2013 -0600

    pull down a newer minitest

    hopefully to fix must_output

commit 537b5ddd22de57f0fff812646a03b982725dfa23
Author: phinze <paul.t.hinze@gmail.com>
Date:   Fri Apr 5 01:24:53 2013 -0600

    run a brew update in the build

commit 1516456663f8840f5ffc22345e140c0b5aa23c96
Author: phinze <paul.t.hinze@gmail.com>
Date:   Fri Apr 5 01:22:31 2013 -0600

    remove stray puts

commit 4c8f8348f88ffd8eafd7a1f948f70dfbc881b416
Author: phinze <paul.t.hinze@gmail.com>
Date:   Fri Apr 5 01:16:10 2013 -0600

    add expand_path to see if that helps

commit c6e8aa160dd4c778497de4dca8f90f4519d76bd4
Author: phinze <paul.t.hinze@gmail.com>
Date:   Fri Apr 5 01:13:22 2013 -0600

    add debugging output for travis
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