CHANGELOG: Add missing entries

[dylanahsmith]

Looks like there were a couple of notable changes that didn't have a corresponding changelog entry.

[codecov]

Codecov Report

Merging #326 (ce9c997) into master (da7f43c) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #326   +/-   ##
=======================================
  Coverage   95.86%   95.86%           
=======================================
  Files          17       17           
  Lines         580      580           
=======================================
  Hits          556      556           
  Misses         15       15           
  Partials        9        9           

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