* Node modules compatibility: add ".js" extension to imported polyfills
* Update fixtures
* add extensions on calling `addDefaultImport()`, not in the function.
* Add windows to travis
* Update
* Do not use sh file on windows
* Fix whitespace
* Unify command
* ./ doesn't work on windows
* Remove all ./ usages
* Run windows test before others
* fix: normalize filename when generating sources
sources should be URL.
* fix: replace normalized path to cwd
* chore: add nodePlatform task options
* fix: normalize preset-env filename output
* chore: replace normalized path to CWD on win32 platform
* limit transform-react-source to run on linux and darwin
* test: escapeRegExp on testcases
* test: add test for babel --filename on windows
* test: double babel-node/cli test timeout
* chore: workaround windows build does not stop
* chore: remove redundant condition
* refactor: rename `nodePlatform` to `os`
