final PR before v1.4.2 release — updating CHANGELOG.md

[jGaboardi]

This PR updates CHANGELOG.md before the v1.4.2 release.

[codecov]

Codecov Report

Merging #430 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #430   +/-   ##
=======================================
  Coverage   97.13%   97.13%           
=======================================
  Files           3        3           
  Lines        1118     1118           
  Branches      267      267           
=======================================
  Hits         1086     1086           
  Misses         12       12           
  Partials       20       20

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