Singnup Username Update by gamersam 2215 and the admins

<input id="signup-username" ng-trim="false" ng-change="onChange()" name="username" class="form-control input-field ng-pristine ng-invalid ng-invalid-validusername ng-empty ng-touched" type="text" tabindex="1" rbx-valid-username="" rbx-form-interaction="" send-input-value="true" rbx-form-validation="" placeholder="Username (don't use your real name)" ng-model="signup.username" ng-disabled="false &amp;&amp; disableFieldBirthdateInvalid()"><input id="signup-password" ng-trim="false" name="password" class="form-control input-field ng-pristine ng-empty ng-invalid ng-invalid-password ng-touched" type="password" tabindex="2" rbx-valid-password="" rbx-form-interaction="" rbx-form-validation="" rbx-form-validation-redact-input="" placeholder="Password (minimum length 8)" ng-model="signup.password" ng-disabled="false &amp;&amp; disableFieldBirthdateInvalid()"><input id="signup-password-confirm" ng-trim="false" name="passwordConfirm" class="form-control input-field ng-pristine ng-isolate-scope ng-empty ng-invalid ng-invalid-match ng-touched" match="signup.password" rbx-valid-password-confirm="" rbx-form-interaction="" rbx-form-validation="" rbx-form-validation-redact-input="" type="password" tabindex="3" placeholder="Confirm Password" ng-model="signup.passwordConfirm" ng-disabled="false &amp;&amp; disableFieldBirthdateInvalid()">
<button id="signup-button" type="button" tabindex="10" class="btn-primary-md signup-submit-button" rbx-form-interaction="" name="signupSubmit" ng-disabled="isSubmitting" ng-show="isSectionShown" data-signup-api-url="https://api.roblox.com/signup/v1" ng-click="submitSignup()" ng-keypress="submitSignup()">Update
            </button>