* 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 ensures we correctly detect and import
Data*Associations and Associations.
It aligns logging across the import components, too, being slightly more
verbose and helpful.
Related to #112