Add apt packages required for new shibboleth implementation

Updates to santizing script to work with current data

Truncating a hash function is kind of terrible, but this gives us a
unique 30 character string and should avoid conflicts.

! should be understood by django to mean "no password set".  It's handled
better in newer versions, but even in 1.4 it doesn't cause the "login
hangs" errors on stage like '' does.

Support creating 0-many ELBs at once from a service configuration

elbs:
  - name: "{{ e_d_c }}-public"
    scheme: "internet-facing"
  - name: "{{ e_d_c }}-internal"
    scheme: "internal"

If an internal elb exists, we need private subnets

This is functionally identical to the service_subnets and assumes you've
defined a private_elb_subnet_{1,2} similar to the existing
public_subnet_{1,2} variables (and requires code added in edx-secure's edx_service)

The subnet if statement is horride, but registering that variable as a
temporary global wasn't working.

Services might not have elbs, might only have public ELBs or might have
internal ELBs with no subnets configured.  Try to catch these cases
before ansible/ec2 give a less useful error message.

Move aws specific task to aws role.

Updates to db creation playbooks.

Don't use auth on the URL that is used for healthcheck.

- Delete the create_dbs.yml playbook since we don't use it.
- Update the create_db_and_users.yml playbook to use lists instead of dictionaries.

Index the jenkins master log in Splunk

Fix looping over removed template

The version in service-builder used a list while the one in master expected a dict.

Updated all the usages to provide a list.

Add cassandra role

Update template.

Remove unused PEARSON_TEST_PASSWORD setting

Use profile for vpc creation.

I'm not seeing this referenced anywhere in the `edx-platform` codebase.

E0d/service builder

Feanil/vpc tool update

We hate handlers

Also update vars to better follow our conventions.

Move our changes to the 1.9 version of the ec2_vpc module.

Add ability to use SSL for mongo connections.