Adding ability to remove operations.

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "json-logic-js",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "homepage": "https://github.com/jwadhams/json-logic-js",
   "authors": [
     "Jeremy Wadhams <[email protected]>"

logic.js

@@ -318,6 +318,9 @@ http://ricostacruz.com/cheatsheets/umdjs.html
     operations[name] = code;
   };
 
+  jsonLogic.rm_operation = function(name) {
+    delete operations[name];
+  };
 
   jsonLogic.rule_like = function(rule, pattern) {
     // console.log("Is ". JSON.stringify(rule) . " like " . JSON.stringify(pattern) . "?");

package.json

@@ -1,6 +1,6 @@
 {
   "name": "json-logic-js",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "description": "Build complex rules, serialize them as JSON, and execute them in JavaScript",
   "main": "logic.js",
   "directories": {

tests/tests.js

@@ -172,6 +172,16 @@ QUnit.test( "Expanding functionality with add_operator", function( assert) {
     42
   );
 
+  //Remove operation:
+  jsonLogic.rm_operation("times");
+
+  assert.throws(
+    function() {
+      jsonLogic.apply({"times": [2,2]});
+    },
+    /Unrecognized operation/
+  );
+
   // Calling a method that takes an array, but the inside of the array has rules, too
   jsonLogic.add_operation("array_times", function(a) {
     return a[0]*a[1];
@@ -183,6 +193,9 @@ QUnit.test( "Expanding functionality with add_operator", function( assert) {
     ),
     42
   );
+
+
+
 });
 
 QUnit.test( "Expanding functionality with method", function( assert) {