Now using Gradle for CI.

.travis.yml

@@ -3,17 +3,11 @@ language: java
 jdk:
   - oraclejdk8
 
-before_install:
-  - chmod +x kobaltw
-
-install: true
+before_cache:
+  - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
+  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
 
 cache:
   directories:
-    - $HOME/.m2
-    - $HOME/.kobalt
-
-before_cache:
-    - rm -rf .kobalt/*
-
-script: ./kobaltw clean assemble test
+    - $HOME/.gradle/caches/
+    - $HOME/.gradle/wrapper/