Make AsyncHttpClient Closeable in 1.7.x, close AsyncHttpClient#44

Author: Stephane Landelle

src/main/java/com/ning/http/client/AsyncHttpClient.java

@@ -25,6 +25,7 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.io.Closeable;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Collection;
@@ -138,7 +139,7 @@
  * An instance of this class will cache every HTTP 1.1 connections and close them when the {@link AsyncHttpClientConfig#getIdleConnectionTimeoutInMs()}
  * expires. This object can hold many persistent connections to different host.
  */
-public class AsyncHttpClient {
+public class AsyncHttpClient implements Closeable {
 
     private final static String DEFAULT_PROVIDER = "com.ning.http.client.providers.netty.NettyAsyncHttpProvider";
     private final AsyncHttpProvider httpProvider;