Upgrade to Spring Framework 4

Author: rstoyanchev

pom.xml

@@ -9,7 +9,7 @@
 	<version>1.0.0-BUILD-SNAPSHOT</version>
 	<properties>
 		<java-version>1.7</java-version>
-		<org.springframework-version>4.0.0.BUILD-SNAPSHOT</org.springframework-version>
+		<org.springframework-version>4.0.0.RELEASE</org.springframework-version>
 		<org.aspectj-version>1.7.4</org.aspectj-version>
 		<org.slf4j-version>1.6.1</org.slf4j-version>
 	</properties>