Re-run the django-ida template role to pull in some additional changes made to it into the credentials role

ECOM-3181

Added course_discovery to update script help text

This ensures sandbox users are aware that course_discovery can be updated by /edx/bin/update.

Tag jenkins_worker AMIs for deletion

Fix value of ecomworker JWT_ISSUER setting

This fixes a bug accidentally introduced by https://github.com/edx/configuration/commit/b5d8bfa14034221badbea5038569e922831d8f7e. Formerly, the ecommerce worker service name was recycled as the value of JWT_ISSUER. When the name of the service was changed to "ecomworker," the value used for that setting changed to something which the ecommerce service was not configured to expect. ECOM-3341.

Forums Fixes

Using latest versions of rbenv, bundler, rake, and rubygems.

OPS-1243

This will give us the ability to run packer builds (which will
actually register an AMI) for the strict purpose of testing
the packer buildout itself. Currently, we only build an AMI
as-needed, and when we want to test the buildout, we must manually
delete the registered AMI if the build is successful. The ability
to tag according to testing or real-use will also allow us to
automatically deregister AMIs that were only being used for test
purposes, rather than actual Jenkins builds.

Default to using Dogwood RC2 boxes for Vagrant

Installing forums bundle with --deployment flag

Not needed with --deployment passed to bundle

This will prevent Gemfile.lock from being modified.

bundle install needs to write to the Gemfile.lock

E0d/fix nginx

E0d/fix analytics api

E0d/fix xqueue

Fixing MTU setting

modified the user role

fixed the install error

added the MySQL experimental apt key

DEVOPS-3451 The mysql 5.6 ppa for precise is gone: fix needed