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
containerHandle.getSlot( 0 ).shift( A.getHandle( design ), 0 );
		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( A.getHandle( design ), 1 );
		assertEquals( B, container.getSlot( 0 ).getContent( 0 ) );
		assertEquals( A, container.getSlot( 0 ).getContent( 1 ) );
		assertEquals( C, container.getSlot( 0 ).getContent( 2 ) );
		
		containerHandle.getSlot( 0 ).shift( A.getHandle( design ), 2 );
		assertEquals( B, container.getSlot( 0 ).getContent( 0 ) );
		assertEquals( C, container.getSlot( 0 ).getContent( 1 ) );
		assertEquals( A, container.getSlot( 0 ).getContent( 2 ) );
		as.undo( ); 
		
		containerHandle.getSlot( 0 ).shift( A.getHandle( design ), 3 );
		assertEquals( B, container.getSlot( 0 ).getContent( 0 ) );
		assertEquals( C, container.getSlot( 0 ).getContent( 1 ) );
		assertEquals( A, container.getSlot( 0 ).getContent( 2 ) );
		as.undo( ); 
		
		
		containerHandle.getSlot( 0 ).shift( B.getHandle( design ), 0 );
		assertEquals( B, container.getSlot( 0 ).getContent( 0 ) );
		assertEquals( A, container.getSlot( 0 ).getContent( 1 ) );
		assertEquals( C, container.getSlot( 0 ).getContent( 2 ) );
		as.undo( );