Release 1.7.2

Release 1.7.2rc1

Changes for 1.7.1

ensure css files are not marked as copyOnly during build, thereby all…

…owing them to be subject to css transforms; refs #14108

Handle missing callback on sync values, fixes #14126 !strict

Added tests for propagate progress, fixes #14090 !strict

Fix remove() for non-existent ids, fixes #13727 !strict

Return original promise in whenFinished, fixes #13922 !strict

fixed regression loading old-style nls bundles introduced in [25585];…

… added test to prove regression and fix; refs #13266; !strict

Changes for 1.6.1