change how we reference django users for XQUEUE
role order matters
ordered roles
deploy gerrit server using pre-built binaries
Merge pull request #678 from edx/jarv/ansible-1.4

Jarv/ansible 1.4
Merge pull request #598 from mulby/gabe/gerrit

deploy gerrit server using pre-built binaries
fixing mongo url construction.
Merge pull request #682 from edx/e0d/mongo-url-fix

fixing mongo url construction.
A first cut at an admin VPC that can deploy to VPCs.
Get rid of the environment tag, that doesn't make sense in this case.
Remove the SSL Cert which is not necessary.
Merge pull request #683 from edx/feanil/admin_vpc_template

A first cut at an admin VPC that can deploy to VPCs.
Merge remote-tracking branch 'configuration/master'