get latest version of setuptools & virtualenv

Nate Ricklin · Nate Ricklin · commit 11f9a1d69bbc · 2016-01-28T18:09:10.000-07:00
diff --git a/circle.yml b/circle.yml
@@ -4,7 +4,7 @@ machine:
 
 dependencies:
   pre:
-    - pip install -U pip
+    - pip install -U pip setuptools virtualenv
     - pip install -r requirements.txt
 
 test:
