Support delete acknowledgement

[mirshahriar]

Issue: #299

[codecov-io]

Codecov Report

Merging #302 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master    #302   +/-   ##
======================================
  Coverage    15.1%   15.1%           
======================================
  Files           6       6           
  Lines         278     278           
======================================
  Hits           42      42           
  Misses        230     230           
  Partials        6       6

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e15f764...c1d41c2. Read the comment docs.