code: function CommandRegistry(options) {
  		this._commandList = {};
  		this._contributionsByScopeId = {};
  		this._activeBindings = {};
  		this._urlBindings = {};
  		this._pendingBindings = {}; // bindings for as-yet-unknown commands
  		this._parameterCollector = null;
  		this._init(options || {});
  	}
docs: Constructs a new command registry with the given options.
  @class CommandRegistry can render commands appropriate for a particular scope and DOM element.
  @name orion.commandregistry.CommandRegistry
  @param {Object} options The registry options object
  @param {orion.selection.Selection} [options.selection] Optional selection service.