Switch lincense to MIT from BSD

Kuniwak · Kuniwak · commit ece558f0a30b · 2015-09-20T17:26:09.000+09:00
diff --git a/package.json b/package.json
@@ -17,7 +17,7 @@
     "training"
   ],
   "author": "Kuniwak",
-  "license": "BSD",
+  "license": "MIT",
   "bugs": {
     "url": "https://github.com/mixi-inc/JavaScriptTraining/issues"
   },
