Merge pull request #44 from launchdarkly/pk/fix-python3.3

fix python3.3 build

Author: pkaeding

circle.yml

@@ -1,14 +1,17 @@
 dependencies:
   pre:
-    - pyenv shell 2.7.10; $(pyenv which pip) install --upgrade pip
-    - pyenv shell 3.3.3; $(pyenv which pip) install --upgrade pip
-    - pyenv shell 3.4.2; $(pyenv which pip) install --upgrade pip
+    - pyenv shell 2.7.10; $(pyenv which pip) install --upgrade pip setuptools
+    - pyenv shell 3.3.3; $(pyenv which pip) install --upgrade pip setuptools
+    - pyenv shell 3.4.2; $(pyenv which pip) install --upgrade pip setuptools
+    
     - pyenv shell 2.7.10; $(pyenv which pip) install -r test-requirements.txt
     - pyenv shell 3.3.3; $(pyenv which pip) install -r test-requirements.txt
     - pyenv shell 3.4.2; $(pyenv which pip) install -r test-requirements.txt
+
     - pyenv shell 2.7.10; $(pyenv which pip) install -r twisted-requirements.txt
     - pyenv shell 3.3.3; $(pyenv which pip) install -r twisted-requirements.txt
     - pyenv shell 3.4.2; $(pyenv which pip) install -r twisted-requirements.txt
+
     - pyenv shell 2.7.10; $(pyenv which python) setup.py install
     - pyenv shell 3.3.3; $(pyenv which python) setup.py install
     - pyenv shell 3.4.2; $(pyenv which python) setup.py install