Merge pull request #713 from powellzer/master

Check if select2 input exists before destroy

src/inputs/select2/select2.js

@@ -294,10 +294,12 @@ $(function(){
         },
         
         destroy: function() {
+	        if(this.$input) {
 	            if(this.$input.data('select2')) {
 	                this.$input.select2('destroy');
 	            }
 	        }
+        }
         
     });