Bug 188829 Move the item ,the trans of the model don't close.
1:New report design. 2:Add a Embedded image. 3:Add another imge , then drag the second imge to the first position. 4:Change the size of the first image. Expected: Image change the size. Now: Image size don't change.
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/command/ContentCommandTest.java
as.undo( ); 
		
		containerHandle.getSlot( 0 ).shift( C.getHandle( design ), 2 );
		assertEquals( A, container.getSlot( 0 ).getContent( 0 ) );
		assertEquals( B, container.getSlot( 0 ).getContent( 1 ) );
		assertEquals( C, container.getSlot( 0 ).getContent( 2 ) );
		
		containerHandle.getSlot( 0 ).shift( C.getHandle( design ), 3 );
		assertEquals( A, container.getSlot( 0 ).getContent( 0 ) );
		assertEquals( B, container.getSlot( 0 ).getContent( 1 ) );
		assertEquals( C, container.getSlot( 0 ).getContent( 2 ) );
	}
	/**
	 * Test the method
	 * {@link SlotHandle#move(DesignElementHandle, DesignElementHandle, int)}.
	 * 
	 * @throws Exception
	 */
	public void testMove( ) throws Exception
	{
		
		FreeForm toContainer = new FreeForm( );
		GraphicMasterPage page = new GraphicMasterPage( );
		GraphicMasterPageHandle pageHandle = page.handle( design );
		Label label1 = new Label( );
		Label label2 = new Label( );
		SlotHandle sHandle = pageHandle.getContent( );
		sHandle.add( label1.getHandle( design ) );
		sHandle.move( label1.handle( design ), toContainer.handle( design ),
				FreeForm.REPORT_ITEMS_SLOT );