Upgrade to JUnit Jupiter 5.0.3

Issue: SPR-16384

Author: sbrannen

build.gradle

@@ -47,9 +47,9 @@ configure(allprojects) { project ->
 	ext.hsqldbVersion        = "2.4.0"
 	ext.jackson2Version      = "2.9.3"
 	ext.jettyVersion         = "9.4.8.v20171121"
-	ext.junitJupiterVersion  = "5.0.2"
-	ext.junitPlatformVersion = "1.0.2"
-	ext.junitVintageVersion  = "4.12.2"
+	ext.junitJupiterVersion  = "5.0.3"
+	ext.junitPlatformVersion = "1.0.3"
+	ext.junitVintageVersion  = "4.12.3"
 	ext.kotlinVersion        = "1.2.10"
 	ext.log4jVersion         = "2.10.0"
 	ext.nettyVersion         = "4.1.19.Final"