Upgrade to pip 6.1.0 and the corresponding virtual env. (We can't upgrade beyond…

Upgrade to pip 6.1.0 and the corresponding virtual env. (We can't upgrade beyond this yet due to python version mismatch.)

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