Install wkhtmltopdf

AmazingDreams · AmazingDreams · commit 6ee7307b149d · 2017-08-17T17:36:41.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -5,4 +5,8 @@ scala:
   - "2.12.0"
 jdk:
   - oraclejdk8
+before_install:
+  - sudo apt-get -qq update
+  - sudo apt-get install -y wkhtmltopdf
+  - sudo apt-get install -y xvfb
 
