Remove unneeded "bugs" entry, use a string for keywords, and update "…

…platform" dependency in package.json. [ci skip]

package.json

@@ -5,19 +5,18 @@
   "homepage": "http://benchmarkjs.com/",
   "license": "MIT",
   "main": "benchmark.js",
-  "keywords": ["benchmark", "performance", "speed"],
+  "keywords": "benchmark, performance, speed",
   "author": "Mathias Bynens <mathias@qiwi.be> (http://mathiasbynens.be/)",
   "contributors": [
     "Mathias Bynens <mathias@qiwi.be> (http://mathiasbynens.be/)",
     "John-David Dalton <john.david.dalton@gmail.com> (http://allyoucanleet.com/)",
     "Kit Cambridge <github@kitcambridge.be> (http://kitcambridge.be/)"
   ],
-  "bugs": "https://github.com/bestiejs/benchmark.js/issues",
   "repository": "bestiejs/benchmark.js",
   "scripts": { "test": "echo \"See the repository CONTRIBUTING.md for testing instructions.\"" },
   "dependencies": {
     "lodash": "~2.4.1",
-    "platform": "~1.1.0"
+    "platform": "~1.2.0"
   },
   "engines": [
     "node",