update to gradle 4.4.1

Author: fractalwrench

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Fri Sep 30 22:16:53 BST 2016
+#Wed Jan 03 15:12:53 GMT 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-all.zip