More Travis testing

.travis.yml

@@ -184,6 +184,7 @@ before_install:
   - pip install progressbar==2.2
   - pip install requests
   - echo "127.0.0.1 " `hostname` | sudo tee /etc/hosts
+  - echo "127.0.0.1 localhost" | sudo tee /etc/hosts
 
 services:
   - postgresql