Links must be cleared on TextBlock#replace

This resulted in the recently noted regressions in #255 creating too
many notes when clicking.

[changelog]
Set another download specs to pending as it introduced random travis fails
Only report stat/end relative to the parent if there is one

* Changelog: bugfix
* discovered in #683
* also changed some method describe blocks to include the
  "hash tag" symbolw hich starts comments so I can't put it
  in here
merge master