Different ci structure.

.travis.yml

@@ -1,14 +1,9 @@
 ---
 language: python
 
-jobs:
-  include:
-    - stage: prepare
-      name: install requirements
-      script: pip install mazer
-    - stage: build
-      name: mazer build
-      script: release=$(mazer build | tail -n1 | awk '{print $NF}')
-    - stage: release
-      name: mazer publish
-      script: mazer publish --api-key=${galaxy_api_key} ${release}
+install:
+  - pip install mazer
+  - release=$(mazer build | tail -n1 | awk '{print $NF}')
+
+script:
+  - mazer publish --api-key=${galaxy_api_key} ${release}