* updated docs.

* updated license file.

Merge branch 'v2.0.0'

* fixed misplaced badge on README.md.

* multiple event subscription/unsubscription.

* parent agnostic referencing.
* minor bugfixes and type checks.
* mvc two way binding.

* fixed a small issue in $l.vars.setCookie method.

* fixed a minor typo bug.

* $l.css.transition improvements.

* dist.

* README.md updated.