Migrate to react

• migrate to react
• ng2 block available as fallback
• reconfigure linter
• reconfigure tests
• drop sprity support
• update example code

webpack + multiplatform (Electron, React/Redux, AngularJS

Merge pull request #88 from django-stars/webpack

move webpack-based skeleton to master

Gulp + AngularJS release

Merge pull request #67 from legendar/master

fix transform template url