Merge pull request android-async-http#57 from ajlyon/master

Set default charset to UTF-8 in AsyncHttpResponseHandler

Author: loopj

src/com/loopj/android/http/AsyncHttpResponseHandler.java

@@ -211,7 +211,7 @@ void sendResponseMessage(HttpResponse response) {
             HttpEntity temp = response.getEntity();
             if(temp != null) {
                 entity = new BufferedHttpEntity(temp);
-                responseBody = EntityUtils.toString(entity);
+                responseBody = EntityUtils.toString(entity, "UTF-8");
             }
         } catch(IOException e) {
             sendFailureMessage(e, null);