Add dojo/touch dojoClick "useTarget" feature.
The touch.click event is fired if the touchstart and touchend both occurred
within the target element.

Refs #15913.
reformat file to be more AMD-ish, refs #13101
also fixes a few doc references to dojo.place()
Resolve conflicts with html.js
Updating the example for addOnUnload to AMD syntax.

Refs #17468.
Do not treat touch events as drag events on links.

Refs #17447.
Enable consumption of old 1.6 built root bundles

Fixes #17398.