Add travis build configuration (refs #21)

Author: adangel

.travis.yml

@@ -0,0 +1,19 @@
+sudo: false
+
+addons:
+  apt:
+    packages:
+      - oracle-java8-installer
+
+language: java
+
+jdk: oraclejdk8
+
+install: true
+before_script:
+  - "export DISPLAY=:99.0"
+  - "/sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -ac -screen 0 1280x1024x16"
+  - sleep 3 # give xvfb some time to start
+
+script: "./mvnw verify"
+