Fixes bug 865599 - Run elasticsearch integration tests on jenkins.
fixes bug 789514 - Rank of 0 on topchangers report, r=rhelmer
bug 907861 - use virtualenv for crontabber
Merge pull request #1430 from rhelmer/bug907861-use-virtualenv-from-crontabber

bug 907861 - use virtualenv for crontabber
Merge pull request #1428 from AdrianGaudebert/865599-elasticsearch-jenkins

Fixes bug 865599 - Run elasticsearch integration tests on jenkins.