Bump spring4-next and spring5 profiles

Upgrade baseline for CI tests against newer versions of Spring/Spring Security.

build.gradle

@@ -91,7 +91,7 @@ configure(subprojects) { subproject ->
 	 */
 	if (project.hasProperty('profile')) {
 		apply from: "${project.rootDir}/${profile}-profile.gradle"
-		println "+++ Configuring ${subproject.name} for Spring Framework ${springVersion}"
+		println "+++ Configuring ${subproject.name} for Spring Framework ${springVersion} and Spring Security ${springSecurityVersion}"
 
 		repositories {
 			maven { url "https://repo.spring.io/libs-snapshot" }

spring4-next-profile.gradle

@@ -2,5 +2,5 @@
  * Enable with "-Pprofile=spring4-next"
  */
 
-ext.springVersion = "4.3.4.RELEASE"
-ext.springSecurityVersion = "4.1.3.RELEASE"
+ext.springVersion = "4.3.7.RELEASE"
+ext.springSecurityVersion = "4.1.4.RELEASE"

spring5-profile.gradle

@@ -2,8 +2,8 @@
  * Enable with "-Pprofile=spring5"
  */
 
-ext.springVersion = "5.0.0.M3"
-ext.springSecurityVersion = "4.2.0.BUILD-SNAPSHOT"
+ext.springVersion = "5.0.0.M5"
+ext.springSecurityVersion = "4.2.3.BUILD-SNAPSHOT"
 
 compileJava {
 	sourceCompatibility=1.8