Fix a bug that didn't work without image_style_quality module installed and quality was to be altered.

Sean Dietrich authored Mar 05, 2019 and Aaron Klump committed Mar 05, 2019

Issue #3037088 by sean_e_dietrich, volkswagenchick: Dependencies must be prefixed with the project name

Refactor how the optimization of retina images works to reduce the size of sub-optimal retina images.

Added support for reduced jpeg quality based on https://www.drupal.org/node/2621372 using the image style quality module.