fix(worker): route worker_threads errors like the web surface, and fire once listeners once - #491

fix(worker): route worker_threads errors like the web surface, and fire once listeners once#491

edusperoni merged 4 commits into

NativeScript:mainNativeScript/ios:mainfrom

adrian-niculescu:fix/worker-threads-error-routingadrian-niculescu/NativeScript-iOS:fix/worker-threads-error-routingCopy head branch name to clipboard