code polishing

Author: maxulysse

.travis.yml

@@ -1,20 +1,14 @@
 sudo: required
-
 language: java
-
 jdk: openjdk8
-
-node_js: "node"
-
-services:
-  - docker
+services: docker
 
 env:
   - NXF_VER=0.30.2
   - NXF_VER=''
 
 before_install:
-- docker pull maxulysse/compile-latex:2.0
+  - docker pull maxulysse/compile-latex:2.0
 
 install:
   - curl -fsSL get.nextflow.io | bash