Update cacheVersion in bundle.js

As requested by @vjeux, this moves the change to this file to a separate PR. For more info see facebook#2905.

Author: kassens

local-cli/bundle.js

@@ -35,7 +35,7 @@ function getBundle(flags) {
  projectRoots: projectRoots,
  transformModulePath: require.resolve('../packager/transformer.js'),
  assetRoots: assetRoots,
- cacheVersion: '2',
+ cacheVersion: '3',
  blacklistRE: blacklist(platform),
  };