Use faster container based build ci config

Author: patrickfav

.travis.yml

@@ -1,6 +1,7 @@
 # To let the CI execute the maven wrapper, use this command and push the change:
 #    git update-index --chmod=+x mvnw
 
+sudo: false # route your build to the container-based infrastructure for a faster build
 language: java
 install: true
 jdk:
@@ -48,4 +49,4 @@ cache:
 notifications:
   slack:
     secure: "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"
-  email: false
+  email: false