Merge pull request #16 from wtanaka/master

Remove sudo: false

Author: thomasrockhu

.travis.yml

@@ -1,5 +1,4 @@
 language: java
-sudo: false # faster builds
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Fri Mar 04 11:32:27 CST 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.5-bin.zip