Rmove continue button, fix bug with facebook signup.

client/coral-sign-in/components/CreateUsernameDialog.js

@@ -50,7 +50,6 @@ const CreateUsernameDialog = ({open, handleClose, offset, formData, handleSubmit
             />
             <Button id="save" type="submit" className={styles.saveButton}>{lang.t('createdisplay.save')}</Button>
           </div>
-          <Button className={styles.continuebutton} onClick={handleClose}>{lang.t('createdisplay.continue')}</Button>
       </form>
       </div>
     </div>

client/coral-sign-in/components/styles.css

@@ -173,13 +173,6 @@ input.error{
   color: white;
 }
 
-.continuebutton {
-  background-color: black;
-  font-weight: bold;
-  color: white;
-  min-width: 200px;
-}
-
 .fakeComment {
   display: block;
   margin-bottom: 5px;

client/coral-sign-in/containers/ChangeUsernameContainer.js

@@ -104,7 +104,7 @@ class ChangeUsernameContainer extends Component {
     return (
       <div>
         <CreateUsernameDialog
-          open={auth.showCreateUsernameDialog && auth.fromSignUp}
+          open={auth.showCreateUsernameDialog && auth.user.canEditName}
           offset={offset}
           handleClose={this.handleClose}
           loggedIn={loggedIn}