Description of problem:
Docker-registry worker start fails on missing module jinja2
ImportError: No module named jinja2

There is installed lastest module python-flask, which brings module python-jinja2-26, but import failed. 

Version-Release number of selected component (if applicable):
docker-registry-0.6.5-1.el6.noarch

How reproducible:
Install docker-repository package with latest epel version and try it run. 

Steps to Reproduce:
1. yum install docker-registry 
2. /etc/init.d/docker-registry start 

Actual results:
2014-03-17 16:19:12 [8017] [INFO] Booting worker with pid: 8017
2014-03-17 16:19:12 [8017] [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/wsgi.py", line 11, in <module>
    import registry
  File "/usr/lib/python2.6/site-packages/docker-registry/registry/__init__.py", line 4, in <module>
    from .app import app
  File "/usr/lib/python2.6/site-packages/docker-registry/registry/app.py", line 1, in <module>
    import flask
  File "/usr/lib/python2.6/site-packages/flask/__init__.py", line 19, in <module>
    from jinja2 import Markup, escape
ImportError: No module named jinja2
Expected results:
Docker-registry starts succesfully 

Additional info:
https://bugzilla.redhat.com/show_bug.cgi?id=882016
https://bugzilla.redhat.com/show_bug.cgi?id=1004384