Show "You" to same-user on activity stream items

app/assets/javascripts/discourse/helpers/application_helpers.js.coffee

@@ -125,4 +125,9 @@ Handlebars.registerHelper 'date', (property, options) ->
 
   new Handlebars.SafeString("<span class='date' title='#{fullReadable}'>#{displayDate}</span>")
 
-
+Handlebars.registerHelper 'personalizedName', (property, options) ->
+  name = Ember.Handlebars.get(this, property, options);
+  username = Ember.Handlebars.get(this, options.hash.usernamePath, options) if options.hash.usernamePath
+  
+  return name unless username == Discourse.get('currentUser.username')
+  return Em.String.i18n('you')

app/assets/javascripts/discourse/templates/user/stream.js.handlebars

@@ -5,7 +5,7 @@
         <a href="/users/{{unbound username}}" class='avatar-link'><div class='avatar-wrapper'>{{avatar this imageSize="large" extraClasses="actor" avatarTemplatePath="avatar_template"}}</div></a>
         <span class='time'>{{date path="created_at" leaveAgo="true"}}</span>
         <a class="title" href="{{unbound postUrl}}">{{unbound title}}</a><br>
-        <a class='name' href="/users/{{unbound username}}">{{unbound name}}</a>
+        <a class='name' href="/users/{{unbound username}}">{{personalizedName name usernamePath="username"}}</a>
         <span class='type'>{{unbound description}}</span>
         <a class="post-number" href="{{unbound postUrl}}">#{{unbound post_number}}</a>
       </div>

config/locales/en.yml

@@ -435,6 +435,7 @@ en:
     show_more: "show more"
     links: Links
     faq: "FAQ"
+    you: "You"
 
     suggested_topics:
       title: "Suggested Topics"