Remove ability to configure ts-loader with the ts section of webpack.config.js

[johnnyreilly]

Webpack 2 is stricter in terms of what it allows in the webpack.config.js. It won't allow ts. Your mission, should you choose to accept it, is to only allow configuration of ts-loader via query / options. As well as this you'll have to amend the test pack which relies on being able to configure ts-loader this way at present. Oh and update the docs too.

[johnnyreilly]

Also, query is not passed when using resolveLoader / alias: webpack/enhanced-resolve#41

Until that's fixed take a look at @jbrantly's workaround: webpack/webpack#1289 (comment)