Merge pull request #98 from OpenTechFund/allow-master-to-be-CId

Update the travis settings to ensure we have builds on merge to master

.travis.yml

@@ -6,6 +6,10 @@ cache:
   directories:
     - node_modules
 
+# Only build branch updates for master
+branches:
+  only:
+    - master
 
 # Use container-based infrastructure
 dist: trusty