title: Append values to [String : AnyObject] or [String : String]
body: <p>I want to append values to a variable of type <code>[String : AnyObject]</code> how do I do that? cause I can't do the ff.</p>
  
  <pre><code>var someObject:[String : AnyObject] = ["name":"John Diggle", "location":"Star City Prison"]
  
  someObject.append(["work":"soldier"])        // does not work  (by that I mean there is no .append function like that of other collection types such as NSMutableArray and NSMutableDictionary
  someObject = someObject + ["work":"soldier"] // does not work
  </code></pre>
  
  <p>I'm finding a way to make easier parameters for Alamofire since Alamofire.request uses <code>[String : AnyObject]</code></p>