in memory dbs config (#1551)

* in memory dbs config

* small fix

spring-data-rest/pom.xml

@@ -14,7 +14,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>1.5.1.RELEASE</version>
+        <version>1.5.2.RELEASE</version>
         <relativePath /> <!-- lookup parent from repository -->
     </parent>
 
@@ -41,6 +41,26 @@
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
         </dependency>
+		
+		<!--
+        <dependency>
+            <groupId>org.hsqldb</groupId>
+            <artifactId>hsqldb</artifactId>
+            <version>${hsqldb.version}</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.derby</groupId>
+            <artifactId>derby</artifactId>
+            <version>${derby.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.xerial</groupId>
+            <artifactId>sqlite-jdbc</artifactId>
+            <version>${sqlite.version}</version>
+        </dependency>
+        -->
 
         <dependency>
             <groupId>org.springframework.boot</groupId>