Actually use gradle 4.10.2

Somewhere along the line the wrapper version was updated, but not the jar and the script.

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Mon Aug 22 17:36:22 EDT 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-bin.zip