Add dependency management for Spring Framework BOM.

pom.xml

@@ -176,6 +176,13 @@
 				<artifactId>geode-wan</artifactId>
 				<version>${pivotal-gemfire.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.springframework</groupId>
+				<artifactId>spring-framework-bom</artifactId>
+				<version>${spring.version}</version>
+				<scope>import</scope>
+				<type>pom</type>
+			</dependency>
 			<dependency>
 				<groupId>org.springframework.boot</groupId>
 				<artifactId>spring-boot-starter</artifactId>