fix(sharing): Push ng-binding into Jade

website/views/shared/modals/level-up.jade

@@ -1,6 +1,7 @@
 include ../avatar/generated_avatar
 
 script(type='text/ng-template', id='modals/levelUp.html')
+  - var level = '{{user.stats.lvl}}';
   .modal-content(style='min-width:28em')
     .modal-body.text-center(style='padding-bottom:0')
       h3(style='margin-bottom: 0')=env.t('gainedLevel')
@@ -23,7 +24,7 @@ script(type='text/ng-template', id='modals/levelUp.html')
       .container-fluid
         .row
           .col-xs-3
-            a.twitter-share-button(href='https://twitter.com/intent/tweet?text=I+got+to+Level+{{::user.stats.lvl}}+in+Habitica+by+improving+my+real-life+habits!&via=habitica&url=#{env.BASE_URL}/social/level-up&count=none')=env.t('tweet')
+            a.twitter-share-button(href='https://twitter.com/intent/tweet?text=I+got+to+Level+#{level}+in+Habitica+by+improving+my+real-life+habits!&via=habitica&url=#{env.BASE_URL}/social/level-up&count=none')=env.t('tweet')
           .col-xs-4(style='margin-left:.8em')
             .fb-share-button(data-href='#{env.BASE_URL}/social/level-up', data-layout='button')
           .col-xs-4(style='margin-left:.8em')