crontab.tpl: execute cron gc during low traffic time.
switching to python27: modify jenkins build scripts (bug 1013867)
use pyquery when checking markup to not fail on attributes reordering (bug 1013867)
Merge pull request #112 from jasonthomas/cron_gc

crontab.tpl: execute cron gc during low traffic time.
Merge pull request #105 from magopian/1013867-switch-python27

switch to python27 (bug 1013867)
[WIP] Upgrading Elasticsearch (bug 1013874)