Switched core-tiger module to use standard project spring version.

core-tiger/pom.xml

@@ -23,7 +23,7 @@
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-aop</artifactId>
-      <version>2.0.4</version>
+      <version>${spring.version}</version>
     </dependency>
   </dependencies>