-r base.txt
gunicorn==18.0
python-memcached==1.53
newrelic>2.50.0.39,<3.0

-r base.txt
gunicorn==18.0
python-memcached==1.53
newrelic>=2.50.0.39,<3.0

Include the 1.8-compatible version as valid
Include the 1.8-compatible version as valid
