Feature/on in on (#41)
* Getting somewhere
* Nesting works
Without 'bloodyRebuild' and 'or'
* Testing with 'or'
* DomPathifier initialization moved from domdom to dom-stower
* Remove subIndex from stower type
* Test
ing
* Bump ava
Debugging works!
* Working work
updateChildren error
* On in on
Ensure on in on is called as mountable.
Adding Stower after mounted should be automounted.
Considering rewriting mountables.push to addMountable with built in logic for this.
* on in on 2
Mounted must be called _after_ stowers are put into place
* on in on works!
* 7.2.0
* Update readme
* 7.2.1
