React Chrome Extension Boilerplate Versions Save

1. remove react-hot-loader, use react-transform
2. update file structure
3. remove content script example
4. remove LiveReload, background script use webpack build
   • replace webpack hot/log-apply-result.js, chrome.runtime.reload if background script changed.
5. add inject react example

fix new eslint-config-airbnb rules

1. update redux things version
2. update redux todoapp example
3. update dev dependencies version

1. inject state at createStore
2. add save todos middleware
3. fixed code

1. fix app/scripts/reactdevtool.js function
2. add func-names rule

1. add ESLint
2. fix all code

Initial release.