Merge pull request #28 from stevenvanrossem/master

add latest setuptools version to ansible install script (seems dependency for ryu)
diff --git a/ansible/install.yml b/ansible/install.yml
index fbeb0e5..1d73779 100755
--- a/ansible/install.yml
+++ b/ansible/install.yml
@@ -15,6 +15,9 @@
    - name: install pip
      apt: pkg=python-pip state=installed
 
+   - name: install setuptools
+     pip: name=setuptools state=latest
+
    - name: install zerorpc
      pip: name=zerorpc