Add props for #1108. Closes #1108

CHANGELOG.md

@@ -8,6 +8,7 @@ All notable changes to this project will be documented in this file.
 * Updated PHPUnit version in composer.json. Props [@slaFFik](https://github.com/slaFFik) ([#1204](https://github.com/CMB2/CMB2/pull/1204)).
 * Package.json: fix the need of global (old) grunt. Props [@slaFFik](https://github.com/slaFFik) ([#1206](https://github.com/CMB2/CMB2/pull/1206)).
 * Add optional confirmation dialog to group field's Remove button. Example [documented in the example functions file](https://github.com/CMB2/CMB2/blob/12036e2dcdeb5b019e844b814eca154bb0eee791/example-functions.php#L525). Props [@slaFFik](https://github.com/slaFFik) ([#1208](https://github.com/CMB2/CMB2/pull/1208)).
+* Add 'id' attribute on group field `.postbox` divs to ensure compatibility with scripts which expect ids there. Props [@amans2k](https://github.com/amans2k) ([#1108](https://github.com/CMB2/CMB2/pull/1108)).
 
 ### Bug Fixes
 * Remove superfluous method definitions. Props [@tnorthcutt](https://github.com/tnorthcutt) ([#1200](https://github.com/CMB2/CMB2/pull/1200)).