Prepare Genesis Portfolio Pro 1.2.2 for release

[nickcernis]

Addresses #48 by completing release tasks for 1.2.2. (We bumped tested up to to 5.4 but also had some unreleased changes in develop that I tracked down here for the changelog.)

Also:

• Updates composer dev dependencies (phpcs was failing to run locally before I did this).
• “Fixes“ (ignores) a phpcs warning about a short ternary. I think phpcs is just heightist.

How to test

Code review.

Documentation

No documentation required.

Notes

Once this is reviewed, I can merge to master manually and test @BMO-tech's and @nathanrice's CI work by tagging for release. 🙌 for the automation work!

[BMO-tech]

Circle Config is already ready for this plugin. So the normal deploy process of merging into master and then tagging should trigger everything required to deploy to the WP Plugin repo