Update Maven configuration

Signed-off-by: Pekka Helenius <fincer89@hotmail.com>

bookstore/pom.xml

@@ -52,6 +52,11 @@
 			<artifactId>spring-boot-starter-data-jpa</artifactId>
 		</dependency>
 
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-rest</artifactId>
+		</dependency>
+
 		<dependency>
 			<groupId>com.h2database</groupId>
 			<artifactId>h2</artifactId>