Merge "Removal of Actor::Insert API" into devel/master

diff --combined dali-toolkit/public-api/controls/control-impl.cpp
index c0780c4,a346005..b4b9cdb
--- 1/dali-toolkit/public-api/controls/control-impl.cpp
--- 2/dali-toolkit/public-api/controls/control-impl.cpp
+++ b/dali-toolkit/public-api/controls/control-impl.cpp
@@@ -584,8 -584,8 +584,8 @@@ void Control::SetBackgroundColor( cons
      Actor actor = CreateBackground(Self(), color );
      background.actor = actor;
      mImpl->mAddRemoveBackgroundChild = true;
-     // use insert to guarantee its the first child (so that OVERLAY_2D mode works)
-     Self().Insert( 0, actor );
+     // The actor does not need to be inserted to guarantee order.
+     Self().Add( actor );
      mImpl->mAddRemoveBackgroundChild = false;
    }
  
@@@ -619,8 -619,8 +619,8 @@@ void Control::SetBackgroundImage( Imag
     // Set the background actor before adding so that we do not inform derived classes
     background.actor = actor;
     mImpl->mAddRemoveBackgroundChild = true;
-    // use insert to guarantee its the first child (so that OVERLAY_2D mode works)
-    Self().Insert( 0, actor );
+    // The actor does not need to be inserted to guarantee order.
+    Self().Add( actor );
     mImpl->mAddRemoveBackgroundChild = false;
  }
  
@@@ -875,7 -875,7 +875,7 @@@ void Control::Initialize(
        styleManager.StyleChangeSignal().Connect( this, &Control::OnStyleChange );
  
        // Apply the current style
 -      GetImpl( styleManager ).ApplyThemeStyle( Toolkit::Control( GetOwner() ) );
 +      GetImpl( styleManager ).ApplyThemeStyleAtInit( Toolkit::Control( GetOwner() ) );
      }
    }