title: Push view to navigation from modal of another tab
body: <p>I'm quite new to iOS programming and I'm trying to do something that I think is simple but I can't find clear explanation. 
  I'm trying to develop an app with Xcode 6.3 and swift 1.2</p>
  
  <p>I have this :</p>
  
  <p><img src="https://i.stack.imgur.com/VcD72.png" alt="storyboard in xcode"></p>
  
  <p>So I'm in a tab based application. Each tab view are inside navigation controller. 
  <strong>D</strong> is a modal launch from <strong>C</strong>. When I click on a button inside <strong>D</strong> I want to go to <strong>B</strong>. This is fine. But I would like also to display the top navigation bar with a back button pointing to <strong>A</strong>.
  For now when I tried to use the push segue from <strong>D</strong> to <strong>B</strong>, <strong>B</strong> is shown as modal but not part of the navigation controller.</p>
  
  <p>How I have to achieve this easily ? Do I have to recreate all the stack by instantiating each view (A then B) and push everything onto the navigation stack ?</p>
  
  <p>If you know the code to achieve this in objective-c it's fine for me as well.</p>