code: function IODataSource(config) {
  	this.columns = standardizeCols(config.columns);
  	this.io = config.data;
  	this.node = config.node;
  
  	this.fetch = config.fetch || function(io, sort, dir) {
  		io.post('sort=' + sort + '&dir=' + dir);
  	}
  
  	// Default to the first col ASC for sorting
  	this.colSortIdx = config.defaultSortCol || -1
  }
docs: Datasource from a remote IO source