Merge pull request #2226 from edx/alawibaba/pip-upgrade

Upgrade to pip 6.0.8. We can't upgrade beyond this yet due to python …

playbooks/roles/common/defaults/main.yml

@@ -94,9 +94,9 @@ common_debian_pkgs:
   - curl
 
 common_pip_pkgs:
-  - pip==1.5.6
+  - pip==6.1.0
   - setuptools==3.6
-  - virtualenv==1.11.6
+  - virtualenv==12.1.0
   - virtualenvwrapper
 
 common_web_user: www-data

pre-requirements.txt

-pip==1.5.6
+pip==6.1.0