Impoved merge requests show page. Minor style improvements across project

app/views/events/_event_changed_merge_request.html.haml

@@ -1,10 +1,11 @@
 = image_tag gravatar_icon(event.author_email), :class => "avatar"
 %strong #{event.author_name} 
-- if event.closed?
-  closed
-- else 
-  reopened
-merge request 
+%span.label.important
+  - if event.closed?
+    closed
+  - else 
+    reopened
+ merge request 
 = link_to project_merge_request_path(event.project, event.merge_request) do
   %strong= truncate event.merge_request_title
 at 
@@ -12,7 +13,6 @@ at
 %span.cgray
   = time_ago_in_words(event.created_at)
   ago.
-%br
 %span.label= event.merge_request.source_branch
 →
 %span.label= event.merge_request.target_branch