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
array[0],
						validateContainer );
			}
			int canContainAll = CONTAIN_NO;
			for ( int i = 0; i < array.length; i++ )
			{
				int canContain = handleValidateTargetCanContain( targetObj,
						array[i],
						validateContainer );
				if ( i == 0 )
				{
					canContainAll = canContain;
				}
				if ( canContain == CONTAIN_NO || canContain != canContainAll )
				{
					return CONTAIN_NO;
				}
			}
			return canContainAll;
		}
		else
		{
			
			if ( transferData instanceof DesignElementHandle )
			{
				return handleValidateTargetCanContainByContainer( targetObj,
						(DesignElementHandle) transferData,
						validateContainer );
			}
			else if ( transferData instanceof ColumnBandData )