Allow popping to the root view controller in the nav stack.

lib/ProMotion/screen/screen_navigation.rb

@@ -14,7 +14,7 @@ module ProMotion
         self.split_screen.detail_screen = screen
 
       elsif args[:in_master] && self.split_screen
-        self.split_screen.master_screen = screen 
+        self.split_screen.master_screen = screen
 
       elsif args[:close_all]
         open_root_screen screen
@@ -41,6 +41,10 @@ module ProMotion
       app_delegate.open_root_screen(screen)
     end
 
+    def pop_to_root(animated = false)
+      self.navigation_controller.popToRootViewControllerAnimated animated
+    end
+
     def open_modal(screen, args = {})
       open screen, args.merge({ modal: true })
     end
@@ -94,7 +98,7 @@ module ProMotion
 
       # Instantiate screen if given a class
       screen = screen.new if screen.respond_to?(:new)
-      
+
       # Set parent
       screen.parent_screen = self if screen.respond_to?(:parent_screen=)