Ex-79 Bug Fixed. If there is no coupon code,  'Generate Registration Codes' modal dialog does not appear
Merge pull request #5170 from edx/muhhshoaib/Ex-79-BUG-if-no-coupon-code-defined-registration-codes-modal-dialog-box-does-not-appear

Ex-79 Bug Fixed. If there is no coupon code, 'Generate Registration Codes' modal dialog does not appear.