Closes android-async-http#266

Author: smarek

library/src/com/loopj/android/http/AsyncHttpClient.java

@@ -278,6 +278,14 @@ public void setSSLSocketFactory(SSLSocketFactory sslSocketFactory) {
         this.httpClient.getConnectionManager().getSchemeRegistry().register(new Scheme("https", sslSocketFactory, 443));
     }
 
+    /**
+     * Sets the maximum number of retries for a particular Request.
+     * @param retries maximum number of retries per request
+     */
+    public void setMaxRetries(int retries) {
+        this.httpClient.setHttpRequestRetryHandler(new RetryHandler(retries));
+    }
+
     /**
      * Sets headers that will be added to all requests this client makes (before sending).
      *