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
{
			int columnNumber;
			Object parent;
			ColumnPosition( Object obj )
			{
				if ( obj instanceof ColumnHandle )
				{
					ColumnHandleAdapter columnAdapter = HandleAdapterFactory.getInstance( )