Adding bash wrapper for hipchat feature
Merge pull request #1036 from edx/e0d/add-hipchat

Adding bash wrapper for hipchat feature
adding hipchat to top-level req file, pinning ver
Merge pull request #1037 from edx/e0d/requirements-update

adding hipchat to top-level req file, pinning ver
Merge pull request #1016 from edx/jsa/fix-gem-perms

make `bundle install` stop requiring a password in /edx/app/forum
Updating DNS script for multiple accounts in the edx.org zone

This PR makes the following changes:

* Defaults to the edx.org zone instead of a vpc zone
* Takes an AWS id and secret to query another account for instance info
* Adds some safe guards around duplicate dns entries
* Creates an ban list for elbs
Preview module store.
Adding mapping for preview host.
Removing preview hash gen.
removing preview runtime config.
Deleting legacy templates.
removing unused config.
should be a dict.
Merge pull request #1038 from edx/jarv/vpc-dns

Updating DNS script for multiple accounts in the edx.org zone
Allows override of nginx configuration templates via simple variable
Merge pull request #781 from edx/cg/kibana_logstash

Kibana and logstash roles
Merge pull request #1039 from edx/e0d/preview

E0d/preview
Preview module store.
Adding mapping for preview host.
Removing preview hash gen.