fix meta reading error.

Author: liuwenchao

README.md

@@ -1,11 +1,14 @@
 # <aha-table> ![Bower Version](https://badge.fury.io/bo/aha-table.svg)
 
-> A Polymer element for a searchable, sortable, paginatable, inline-editable, selectable table/grid.
+> A Polymer element for a searchable, sortable, paginatable, inline-editable, selectable, copyable, removable table/grid.
 
 ## Demo
 
 [Check it live!](http://liuwenchao.github.io/aha-table)
 
+[Performance Test!](http://liuwenchao.github.io/aha-table/performance.html)
+
+
 ## Usage
 
 1. Install the component using [Bower](http://bower.io/):

src/aha-table.html

@@ -769,9 +769,10 @@
 			searchplaceholder: undefined,
 			ready: function() {
 				if (this.dataset.choices) {
-					JSON.parse(this.dataset.choices).forEach(function(option) {
+					var choices = JSON.parse(this.dataset.choices);
+					for(option in choices) {
 						this.options.push({'value': option, 'label': choices[option]});
-					}, this);
+					}
 				}
 			}
 		});