[chore] Use native JSON and drop support for older nodejs versions (#64)

Author: jimmywarting

.travis.yml

@@ -1,8 +1,6 @@
 language: node_js
 sudo: false
 node_js:
-  - '0.10'
-  - '0.12'
   - '4'
   - 'node'
 notifications:

index.js

@@ -4,7 +4,6 @@
  */
 
 var debug = require('debug')('socket.io-parser');
-var json = require('json3');
 var Emitter = require('component-emitter');
 var binary = require('./binary');
 var isBuf = require('./is-buffer');
@@ -166,7 +165,7 @@ function encodeAsString(obj) {
 
   // json data
   if (null != obj.data) {
-    str += json.stringify(obj.data);
+    str += JSON.stringify(obj.data);
   }
 
   debug('encoded %j as %s', obj, str);
@@ -323,7 +322,7 @@ function decodeString(str) {
 
 function tryParse(p, str) {
   try {
-    p.data = json.parse(str);
+    p.data = JSON.parse(str);
   } catch(e){
     return error();
   }

package.json

@@ -13,7 +13,6 @@
   ],
   "dependencies": {
     "debug": "2.3.3",
-    "json3": "3.3.2",
     "component-emitter": "1.2.1",
     "isarray": "0.0.1"
   },