fixing travis build

Author: Marc Aschmann

.travis.yml

@@ -13,7 +13,7 @@ addons:
 
 install:
   # Install Ansible.
-  - pip install ansible=1.9
+  - pip install ansible==1.9
 
   # Add ansible.cfg to pick up roles path.
   - "{ echo '[defaults]'; echo 'roles_path = ../'; } >> ansible.cfg"