Version 1.4.0 released

[jgaeddert]

After an embarrassing long delay, version 1.4.0 is finally tagged. I'm certain I missed a few things here and there, but with a lot of help from the community, it should be backwards compatible with v1.3.2 but adds some useful features and improvements. I won't list them all here (check the HISTORY file for details), but there are a number of new objects, new methods for existing objects, better support for error handling, integrated GitHub workflows for testing & code coverage, and general stability enhancements.

Thank you so much for your support, and most importantly your patience!
-jd