Roll tools/swarming_client/ to 79940aeeec0ace78ade0fec27515850268761af5.

Roll tools/swarming_client/ to 79940aeeec0ace78ade0fec27515850268761af5.

$ git log 926dccd2e..79940aeee --date=short --format='%ad %ae %s' | sed 's/@chromium\.org//'
2014-09-23 maruel Rename swarming.py query to bots and add a new query command.
2014-09-17 jam Fix isolate.py failing when run from src directory.

R=vadimsh@chromium.org
BUG=

Committed: https://crrev.com/e5a4c172c6d2219b7ffa8ca8bb30ffe9a8d6764f
Cr-Commit-Position: refs/heads/master@{#296391}

[Vadim Sh., 2014-09-24 05:11:55]

lgtm

[M-A Ruel, 2014-09-24 11:15:21]

The CQ bit was checked by maruel@chromium.org

[commit-bot: I haz the power, 2014-09-24 11:15:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/595183002/1

[commit-bot: I haz the power, 2014-09-24 12:12:17]

Committed patchset #1 (id:1) as 4e4902b15248e7647fe8715888a5701064d66f46

[commit-bot: I haz the power, 2014-09-24 12:12:55]

Patchset 1 (id:??) landed as
https://crrev.com/e5a4c172c6d2219b7ffa8ca8bb30ffe9a8d6764f
Cr-Commit-Position: refs/heads/master@{#296391}