Description of problem:
Current version of docker-registry in EPEL6 does not start, it will run but fails immediately.

Version-Release number of selected component (if applicable):
docker-registry-0.7.1-2.el6

Also tested with docker-registry-0.8.1-2.el6 from epel-testing and had the same result.

How reproducible:
Always


Steps to Reproduce:
1. yum install docker-registry
2. service docker-registry start
3. service docker-registry status

Actual results:
docker-registry has failed

Expected results:
docker-registry to be running.

Additional info:
I traced this back to the version of python-redis being too old in EPEL6 and have filed a RFE to have it updated. 

https://bugzilla.redhat.com/show_bug.cgi?id=1144179

I've also applied to be a co-maintainer for python-redis in the EPEL branches so that I can help with the work in the future.

Below is the python stacktrace:

2014-09-18 16:10:36 [29162] [ERROR] Exception in worker process:
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/gunicorn/arbiter.py", line 495, in spawn_worker
    worker.init_process()
  File "/usr/lib/python2.6/site-packages/gunicorn/workers/ggevent.py", line 165, in init_process
    super(GeventWorker, self).init_process()
  File "/usr/lib/python2.6/site-packages/gunicorn/workers/base.py", line 106, in init_process
    self.wsgi = self.app.wsgi()
  File "/usr/lib/python2.6/site-packages/gunicorn/app/base.py", line 114, in wsgi
    self.callable = self.load()
  File "/usr/lib/python2.6/site-packages/gunicorn/app/wsgiapp.py", line 62, in load
    return self.load_wsgiapp()
  File "/usr/lib/python2.6/site-packages/gunicorn/app/wsgiapp.py", line 49, in load_wsgiapp
    return util.import_app(self.app_uri)
  File "/usr/lib/python2.6/site-packages/gunicorn/util.py", line 354, in import_app
    __import__(module)
  File "/usr/lib/python2.6/site-packages/docker-registry/docker_registry/wsgi.py", line 7, in <module>
    from .run import app
  File "/usr/lib/python2.6/site-packages/docker-registry/docker_registry/run.py", line 16, in <module>
    from .tags import *  # noqa
  File "/usr/lib/python2.6/site-packages/docker-registry/docker_registry/tags.py", line 17, in <module>
    from .lib import mirroring
  File "/usr/lib/python2.6/site-packages/docker-registry/docker_registry/lib/mirroring.py", line 10, in <module>
    from . import cache
  File "/usr/lib/python2.6/site-packages/docker-registry/docker_registry/lib/cache.py", line 52, in <module>
    init()
  File "/usr/lib/python2.6/site-packages/docker-registry/docker_registry/lib/cache.py", line 49, in init
    path=cfg.get('storage_path', '/')
  File "/usr/lib/python2.6/site-packages/docker-registry/docker_registry/core/lru.py", line 51, in init
    redis_conn = redis.StrictRedis(host=host,
AttributeError: 'module' object has no attribute 'StrictRedis'