Upgrade to Spring LDAP 3.3.0-M2.

Closes: #533

Author: christophstrobl

Diff for: pom.xml

@@ -18,7 +18,7 @@
 	</parent>
 
 	<properties>
-		<spring-ldap>3.2.10</spring-ldap>
+		<spring-ldap>3.3.0-M2</spring-ldap>
 		<springdata.commons>3.5.0-SNAPSHOT</springdata.commons>
 		<java-module-name>spring.data.ldap</java-module-name>
 		<unboundid-ldapsdk>7.0.1</unboundid-ldapsdk>