installation: httpretty<=0.8.0 version limit
- Downgrades the httpretty version in requirements to fix urllib3 version conflicts.
Signed-off-by: Leonardo Rossi <leonardo.r@cern.ch>
Reviewed-by: Jiri Kuncar <jiri.kuncar@cern.ch>
Leonardo Rossi <leonardo.r@cern.ch> | Jan 27 2015, 14:35 |