Refactored mixins into utils
ES2015 module exports
ES2015-style imports
WIP Fixing tests
Fixes tests after es2015 code migrations.
We we're require()ing an ES2015 module[1]. Have to make sure you account
for the .default in this case.
[1] We had to use ES5 `require` in Jest:
(https://github.com/babel/babel-jest/issues/16)
- Also added linter configuration, and make linter fail on error
- fixing ES6 errors and added ES6 transformer
- gulp target to try local build
- linted gulpfile
- cant hook into gulp lint yet, because gulp does currently not support
ES6 which some rules demand, since gulp cant transpile itself, we have a
chicken and egg problem.
- ES6 transpiler for test runner
- removed old linter config
- adapted editorconfig to reflect linter config
