Fix samples that need jdbc and don't import it

spring-boot-samples/spring-boot-sample-flyway/pom.xml

@@ -21,7 +21,7 @@
 	<dependencies>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter</artifactId>
+			<artifactId>spring-boot-starter-jdbc</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>com.googlecode.flyway</groupId>

spring-boot-samples/spring-boot-sample-flyway/src/test/java/sample/flyway/SampleFlywayApplicationTests.java

@@ -27,7 +27,7 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 
 @RunWith(SpringJUnit4ClassRunner.class)
 @SpringApplicationConfiguration(classes=SampleFlywayApplication.class)
-public class SampleLiquibaseApplicationTests {
+public class SampleFlywayApplicationTests {
 	
 	@Autowired
 	private JdbcTemplate template;

spring-boot-samples/spring-boot-sample-liquibase/pom.xml

@@ -21,7 +21,7 @@
 	<dependencies>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter</artifactId>
+			<artifactId>spring-boot-starter-jdbc</artifactId>
 		</dependency>
 		<dependency>
 			<groupId>org.liquibase</groupId>