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.ui/src/org/eclipse/birt/report/designer/internal/ui/views/actions/ImportLibraryAction.java
return true;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.action.IAction#run()
	 */
	public void run( )
	{
		FileDialog dialog = new FileDialog( UIUtil.getDefaultShell( ), SWT.OPEN );
		dialog.setFilterExtensions( new String[]{
			"*.rptlibrary" 
			} );
		String filename;
		try
		{
			filename = dialog.open( );
		}
		catch ( Throwable e )
		{
			return;
		}
		if ( filename != null )
		{
			if ( !isInExplorer( filename ) )
			{
				addToPreference(filename);
			}
			String defaultName = new File( filename ).getName( ).split( "\\." )[0];