Reduce logging during tests to make travis happy

Signed-off-by: Andrew DeMaria <lostonamountain@gmail.com>

libresonic-main/pom.xml

@@ -347,6 +347,19 @@
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-configuration2</artifactId>
             <version>2.1.1</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <!-- Fixes liquibase not using slf4j -->
+        <dependency>
+            <groupId>com.mattbertolini</groupId>
+            <artifactId>liquibase-slf4j</artifactId>
+            <version>1.2.1</version>
+            <scope>runtime</scope>
         </dependency>
         <dependency>
             <groupId>commons-beanutils</groupId>

libresonic-main/src/test/resources/logback.xml

@@ -0,0 +1,8 @@
+<configuration>
+    <include resource="org/springframework/boot/logging/logback/base.xml" />
+    <root level="WARN">
+        <appender-ref ref="CONSOLE" />
+        <appender-ref ref="FILE" />
+    </root>
+    <logger name="liquibase" level="ERROR" />
+</configuration>