Initial qpid development work

* Switch base tower devel image from u14.04 to c7
* Switch container image to build python dependencies into itself
  instead of forcing it to be built on startup
* Upgrade venv pip to 8.1.2
* Neuter queue.py which was heavily tied to redis and was basically
  orphaned code
* Alter local_settings to override default cache settings and use
  memcached
* Alter local settings to refer to qpid instead of redis for celery
  broker
* Purge redis python dependencies and add qpid and memcached
* Update docker-compose to purge redis and add qpid and memcached

requirements/requirements.txt

@@ -21,7 +21,6 @@ django-extensions==1.5.9
 git+https://github.com/chrismeyersfsu/django-jsonbfield@fix-sqlite_serialization#egg=jsonbfield
 django-polymorphic==0.7.2
 django-radius==1.0.0
-django-redis-cache==1.6.5
 djangorestframework==3.3.2
 djangorestframework-yaml==1.0.2
 django-split-settings==0.1.1
@@ -96,6 +95,7 @@ python-heatclient==0.8.1
 python-ironicclient==1.0.0
 python-keystoneclient==2.1.1
 python-ldap==2.4.20
+python-memcached==1.58
 python-neutronclient==4.0.0
 python-novaclient==3.2.0
 python-openid==2.2.5
@@ -108,11 +108,11 @@ python-troveclient==1.4.0
 pytz==2015.7
 PyYAML==3.11
 pyzmq==14.5.0
+qpid-python==0.32.1
 rackspace-auth-openstack==1.3
 rackspace-novaclient==1.5
 rax-default-network-flags-python-novaclient-ext==0.3.2
 rax-scheduled-images-python-novaclient-ext==0.3.1
-redis==2.10.3
 requests-oauthlib==0.5.0
 requests==2.9.1
 requestsexceptions==1.1.1

requirements/requirements_dev.txt

@@ -10,3 +10,4 @@ pytest-cov
 pytest-django
 pytest-pythonpath
 pytest-mock
+qpid-tools