Added excludes to Spring LDAP dep to prevent Spring 2.5.6 jars creeping in. removed unnecessary Junit dep from itest/context pom

pom.xml

@@ -710,6 +710,10 @@
                         <groupId>org.springframework</groupId>
                         <artifactId>spring-core</artifactId>
                     </exclusion>
+                    <exclusion>
+                        <groupId>org.springframework</groupId>
+                        <artifactId>spring-tx</artifactId>
+                    </exclusion>                    
                     <exclusion>
                         <groupId>org.springframework</groupId>
                         <artifactId>spring-beans</artifactId>