upgrade to spring 3.0.0.m3

org.springframework.samples.petclinic/pom.xml

@@ -8,7 +8,7 @@
 	<packaging>war</packaging>
 	<version>1.0.0-SNAPSHOT</version>
 	<properties>
-		<spring.version>2.5.6</spring.version>
+		<spring.version>3.0.0.M3</spring.version>
 	</properties>	
 	<dependencies>
 		<!-- Compile dependencies -->
@@ -114,6 +114,13 @@
 			<scope>test</scope>
 		</dependency>			
 	</dependencies>
+	<repositories>
+		<repository>
+			<id>org.springsource.maven.snapshot</id>
+			<name>SpringSource Maven Central-compatible Milestone Repository</name>
+			<url>http://maven.springframework.org/milestone</url>
+		</repository>	
+	</repositories>
 	<build>
 		<plugins>
 			<plugin>