Polishing.

Setting Log level to WARN/INFO for relational.

See #1058
Original pull request #1107

spring-data-relational/src/test/resources/logback.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+
+	<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
+		<encoder>
+			<pattern>%d %5p %40.40c:%4L - %m%n</pattern>
+		</encoder>
+	</appender>
+
+	<logger name="org.springframework.data" level="info"/>
+
+	<root level="warn">
+		<appender-ref ref="console"/>
+	</root>
+
+</configuration>