* use ES6 import / export
* UTILS: export individual utilities
* TESTS: localize TestHelper includes
BREAKING CHANGE:
* all utilities export independent functions
* library sources got ported to ES6. You must now use
a ES module bundler such as Browserify + babelify or
Webpack to consume this library (or parts of it).
This commit adds the functionality to
* add a lane (above/below an existing one)
* split a lane into sub lanes
* remove a lane
* resize a lane
Closes#379Closes#338
Nico Rehwaldt
davcs86