bring client side changes and cleanup

views/shared/modals/invite-friends.jade

@@ -4,10 +4,10 @@ script(type='text/ng-template', id='modals/invite-friends.html')
   .modal-body
     p.alert.alert-info Invite friends by <a href='http://habitrpg.wikia.com/wiki/API_Options' target='_blank'>User ID</a> here.
 
-    form.form-inline(ng-submit='invite(party)')
+    form.form-inline(ng-submit='invite()')
       //-.alert.alert-danger(ng-show='_groupError') {{_groupError}}
       .form-group
-        input.form-control(type='text', placeholder=env.t('userId'), ng-model='party.invitee')
+        input.form-control(type='text', placeholder=env.t('userId'), ng-model='invitee')
         |&nbsp;
         button.btn.btn-primary(type='submit') Invite Existing User
 
@@ -15,7 +15,7 @@ script(type='text/ng-template', id='modals/invite-friends.html')
 
     p.alert.alert-info Invite friends by email. If they join via your email, they'll automatically be invited to your party.
 
-    form.form-horizontal(ng-submit='inviteEmails(inviter, emails)')
+    form.form-horizontal(ng-submit='inviteEmails()')
       table.table.table-striped
         thead
           tr