code: function( url, options, callback ) {
  	if ( typeof options === "function" ) {
  		callback = options;
  		options = null;
  	}
  	options = options || {};
  	var tagsUrl = parseUrl( url ).tagsUrl;
  	list( tagsUrl, options, function( err, data ) {
  		var result = [];
  		if ( !err && data && data.list && data.list.entry ) {
  			if ( Array.isArray( data.list.entry ) ) {
  				result = data.list.entry.filter( function( entry ) {
  						return entry && entry.$ && entry.$.kind === "dir";
  					} );
  			} else {
  				if ( data.list.entry.$ && data.list.entry.$.kind === "dir" ) {
  					result = [ data.list.entry ];
  				}
  			}
  		}
  		callback( err, result );
  	} );
  }
docs: Gets all available tags for the given svn URL
  @function getTags
  @memberof util
  @param {string} url - Project URL to get tags for
  @param {object} [options] - Options object
  @param {function} [callback] - Complete callback