SEC-1747: Upgrade to Spring LDAP 1.3.1

gradle/javaprojects.gradle

@@ -2,7 +2,7 @@ apply plugin: 'java'
 apply plugin: 'eclipse'
 
 springVersion = '3.0.5.RELEASE'
-springLdapVersion = '1.3.0.RELEASE'
+springLdapVersion = '1.3.1.RELEASE'
 ehcacheVersion = '1.6.2'
 aspectjVersion = '1.6.10'
 apacheDsVersion = '1.5.5'