title: AFNetworking 2.0 Request w. Custom Header
body: <p>Ive tried to avoid asking such a newb question on here, but im a Android dev learning IOS and I cant figure out for the life of me how to add a simple header to my post requests using AFNetworking 2.0. Below is my code so far which works if i want to make a request that doesnt require a header.Could anyone show me via adding to my snippet or providing a alternate one that does this? I came across this tut: <a href="http://www.raywenderlich.com/30445" rel="noreferrer">http://www.raywenderlich.com/30445</a>  that shows how to add a header under the "A RESTful Class" heading , but its for afnetworking 1.0 and is now depreciated as far as i can tell. </p>
  
  <pre><code>    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
      NSDictionary *parameters = @{@"uid": @"1"};
      AFHT
      [manager POST:@"http://myface.com/api/profile/format/json" parameters:parameters  success:^(AFHTTPRequestOperation *operation, id responseObject) {
          //NSLog(@"JSON: %@", responseObject);
  
          self.feedArray = [responseObject objectForKey:@"feed"];
  
          [self.tableView reloadData];
  
      } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
          NSLog(@"Error: %@", error);
      } ];
  }
  </code></pre>