fix jslint and some settings

assets/javascripts/discourse/routes/patrons.js.es6

@@ -11,7 +11,7 @@ export default Discourse.Route.extend({
     return ajax("/patrons/patrons", {
       method: "get"
     }).then((result) => {
-      user.set('email', result.email)
+      user.set('email', result.email);
       return user;
     }).catch(() => {
       return user;

assets/javascripts/discourse/templates/components/donation-form.hbs

@@ -69,6 +69,7 @@
           </div>
           <div class="value">
             {{input type="email" value=billing.email}}
+            <div class="desc">{{i18n 'discourse_patrons.payment.email_info'}}</div>
           </div>
         </div>
         <div class="display-row">

config/locales/client.en.yml

@@ -26,6 +26,7 @@ en:
       billing:
         name: Full name
         email: Email
+        email_info: A receipt is sent to this email address
         phone: Phone Number
       confirmation:
         amount: Amount