Bug 119331 Library - name space terminology and behavior
During BIRT 2.0 library feature review meeting the following change was decided. - Change the term namespace to 'prefix' - By default use the library name as the prefix ( namespace ); the dialog to input prefix should be prompted only if hte auto generated prefix is not unique.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DNDUtil.java
( (TableHandle) parent ).pasteColumn( transferData.copy( ),
							columnNumber,
							true );
				}
			}
			else if ( parent instanceof GridHandle )
			{
				if ( isNew )
				{
					( (GridHandle) parent ).insertAndPasteColumn( transferData.copy( ),
							columnNumber );
				}
				else
				{
					( (GridHandle) parent ).pasteColumn( transferData.copy( ),
							columnNumber,
							true );
				}
			}
		}
		catch ( SemanticException e )
		{
			return false;
		}
		return true;
	}
	/**
	 * Operates elements. Operation type includes move or copy. Includes
	 * transaction.
	 *