Phase 4 begins — news tracking starts here, with [ThinkDocs](https://docs.thinkhead.org) is released

Tracking ticket for a line in release 4.0.5.0 that shipped without one.

Phase 4 begins — news tracking starts here, with ThinkDocs is released in alpha, news tracking begins at this point.

Created retroactively so every changelog line has a ticket a reader can follow.