A redis server role.
Setup alton to run with a local redis.
Restart alton if the code changes.
User and group should be created by the apt redis package.
Merge pull request #1177 from edx/feanil/alton_redis

Feanil/alton redis
make aide send reports to syslog.  make aide logs readable by splunk
Merge pull request #1199 from edx/derf/aide_and_snort_reporting_tweaks

make aide send reports to syslog.
moving HTPASSWD config to common
changelog update
Merge pull request #1200 from edx/jarv/simplify-nginx-auth

Have roles reference the nginx role for basic auth
Update vagrant images to support vmware providers
Support --check mode for ansible

In order to support --check we need to ensure that registered
vars exist before checking their stdout. Otherwise ansible
errors out.
Merge pull request #1201 from edx/jarv/diff-and-check

Jarv/diff and check
use deployment, not environment
Coding conventions
Merge pull request #1202 from edx/jarv/migrate-typo

use deployment, not environment
fixing extra_var_args
Merge pull request #1204 from edx/jarv/migrate-typo

fixing extra_var_args
fixing typo again, using correct name
Merge pull request #1205 from edx/jarv/migrate-typo

fixing typo again, using correct name