0.0.5

* Add `nodeA` constructor function
* Rearrange and rename fold functions, adding `foldTreeM`

0.0.4

* Add `nodeValue` and `nodeChildren`
* Add `node` and `node0` and `node1` constructor functions
* Add `foldTreeFix`
* Add isomorphisms to Free monad

0.0.3

* Add Semigroup and Monoid instance

0.0.2

* Add more optics and functions

0.0.1

* This change log starts