Add auto-update support for JSON 3
Add auto-update support for Platform.js
Add auto-update support for Benchmark.js
Remove map file reference
Merge pull request #1420 from d10/json3

Add auto-update support for JSON 3
Merge pull request #1422 from d10/platform

Add auto-update support for Platform.js
Merge pull request #1423 from d10/benchmarkjs

Add auto-update support for Benchmark.js