code: function( config ) {
  		var oContentItem, i;
  
  		if( !( config.content instanceof Array ) ) {
  			throw new lm.errors.ConfigurationError( 'content must be an Array', config );
  		}
  
  		for( i = 0; i < config.content.length; i++ ) {
  			oContentItem = this.layoutManager.createContentItem( config.content[ i ], this );
  			this.contentItems.push( oContentItem );
  		}
  	}
docs: Private method, creates all content items for this node at initialisation time
  PLEASE NOTE, please see addChiold for adding contentItems add runtime
  @private
  @param   {configuration item node} config
  
  @returns {void}