Configure jclouds SLF4J module

Also use jclouds-slf4j instead of slf4j-simple to avoid multiple
bindings.

pom.xml

@@ -177,6 +177,11 @@
       <artifactId>jclouds-allblobstore</artifactId>
       <version>${jclouds.version}</version>
     </dependency>
+    <dependency>
+      <groupId>org.apache.jclouds.driver</groupId>
+      <artifactId>jclouds-slf4j</artifactId>
+      <version>${jclouds.version}</version>
+    </dependency>
     <dependency>
       <groupId>org.apache.jclouds.labs</groupId>
       <artifactId>glacier</artifactId>
@@ -198,10 +203,5 @@
       <artifactId>slf4j-api</artifactId>
       <version>${slf4j.version}</version>
     </dependency>
-    <dependency>
-      <groupId>org.slf4j</groupId>
-      <artifactId>slf4j-simple</artifactId>
-      <version>${slf4j.version}</version>
-    </dependency>
   </dependencies>
 </project>

src/test/java/org/gaul/s3proxy/S3ProxyTest.java

@@ -25,9 +25,11 @@ import java.util.Properties;
 import javax.servlet.http.HttpServletResponse;
 
 import com.google.common.base.Strings;
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.io.ByteSource;
 import com.google.common.io.Resources;
+import com.google.inject.Module;
 
 import org.jclouds.Constants;
 import org.jclouds.ContextBuilder;
@@ -42,6 +44,7 @@ import org.jclouds.http.HttpRequest;
 import org.jclouds.http.HttpResponse;
 import org.jclouds.io.Payload;
 import org.jclouds.io.payloads.ByteSourcePayload;
+import org.jclouds.logging.slf4j.config.SLF4JLoggingModule;
 import org.jclouds.rest.HttpClient;
 import org.junit.After;
 import org.junit.Before;
@@ -85,9 +88,12 @@ public final class S3ProxyTest {
         String forceMultiPartUpload = s3ProxyProperties.getProperty(
                 S3ProxyConstants.PROPERTY_FORCE_MULTI_PART_UPLOAD);
 
+        Properties properties = new Properties();
         ContextBuilder builder = ContextBuilder
                 .newBuilder(provider)
-                .credentials(identity, credential);
+                .credentials(identity, credential)
+                .modules(ImmutableList.<Module>of(new SLF4JLoggingModule()))
+                .overrides(properties);
         if (!Strings.isNullOrEmpty(endpoint)) {
             builder.endpoint(endpoint);
         }