Update Gradle from 4.0 to 4.0.1

This bug-fix release fixes a possible deadlock in parallel test
execution.

The build-scan plugin has been update from 1.7.4 to 1.8, too. This
update was necessary because the old plugin is not compatible anymore.

Author: stefanbirkner

build.gradle

@@ -16,7 +16,7 @@ buildscript {
 }
 
 plugins {
-	id 'com.gradle.build-scan' version '1.7.4'
+	id 'com.gradle.build-scan' version '1.8'
 	id 'net.nemerosa.versioning' version '2.6.0'
 }
 
@@ -583,7 +583,7 @@ configure(rootProject) {
 
 	task wrapper(type: Wrapper) {
 		description = 'Generates gradlew and gradlew.bat scripts'
-		gradleVersion = '4.0'
+		gradleVersion = '4.0.1'
 	}
 
 }

gradle/wrapper/gradle-wrapper.jar

@@ -1,6 +1,6 @@
-#Sat Jun 17 17:02:39 CEST 2017
+#Tue Jul 18 07:51:06 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.0.1-bin.zip