formatInput && formatOutput simplified

lib/event.js

@@ -38,19 +38,15 @@ var inputWithName = function (inputs, name) {
 var indexedParamsToTopics = function (event, indexed) {
     // sort keys?
     return Object.keys(indexed).map(function (key) {
-        // TODO: simplify this!
-        var parser = abi.inputParser([{
-            name: 'test', 
-            inputs: [inputWithName(event.inputs, key)] 
-        }]);
+        var inputs = [inputWithName(event.inputs, key)];
 
         var value = indexed[key];
         if (value instanceof Array) {
             return value.map(function (v) {
-                return parser.test(v);
+                return abi.formatInput(inputs, [v]);
             }); 
         }
-        return parser.test(value);
+        return abi.formatInput(inputs, [value]);
     });
 };