Upgrade to Gradle 4.8

Author: sbrannen

build.gradle

@@ -286,7 +286,7 @@ configure(rootProject) {
 
 	wrapper {
 		description = "Generates gradlew[.bat] scripts"
-		gradleVersion = '4.7'
+		gradleVersion = '4.8'
 
 		doLast() {
 			def gradleOpts = "-XX:MaxMetaspaceSize=1024m -Xmx1024m"

gradle/wrapper/gradle-wrapper.jar

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.7-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.8-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists