Merge branch 'forked-ci'

.travis.yml

@@ -11,10 +11,7 @@ rvm:
   - 2.0.0
   - 2.1.0
 notifications:
-  email:
-    recipients:
-      - mislav.marohnic@gmail.com
-    on_success: never
+  email: false
 env:
   global:
     - AMAZON_S3_BUCKET=ci-cache

script/cached-bundle

@@ -39,7 +39,7 @@ fi
 
 bundle "$@"
 
-if [ ! -f "$cache_name" ]; then
+if [ ! -f "$cache_name" ] && [ -n "$AMAZON_SECRET_ACCESS_KEY" ]; then
   echo "Caching \`${bundle_path}' to S3"
   tar czf "$cache_name" "$bundle_path"
   script/s3-put "$cache_name" "${AMAZON_S3_BUCKET}:${TRAVIS_REPO_SLUG}/${cache_name}"