Webpack 2.1.0-beta.25, Angular 2.1.0

[uglow]

feat(gen): support Webpack 2.1, Angular 2.1.1, eslint 3.10, code coverage thresholds externalised

Code coverage thresholds are now in their own JS/JSON files, allowing Confit to upgrade your config without affecting your threshold values.

ISSUES CLOSED: #86, #79, #84

BREAKING CHANGES:

• Webpack 2.1.0-beta-25 has breaking changes. See https://webpack.js.org/how-to/upgrade-from-webpack-1/. Webpack config has changed accordingly
• Angular 2.1.0 has breaking changes from Angular 2-beta
• Swanky config has changed. The 'snippets' property is no longer required as swanky looks for a /snippets folder from the src directory