Add support for excusing assert count expected errors to qunit-extras.
Add support for excusing assert count expected errors to qunit-extras.

bestiejs/platform.js,am11/platform.js,nonconforme/platform.js,nonconforme/platform.js,am11/platform.js,Keystion/platform.js,Keystion/platform.js,nonconforme/platform.js,bestiejs/platform.js,am11/platform.js,Keystion/platform.js,bestiejs/platform.js