Clarify deletion messages

app/models/event.rb

@@ -54,7 +54,7 @@ class Event < ActiveRecord::Base
     if project
       project.name
     else
-      "(deleted)"
+      "(deleted project)"
     end
   end
 

app/roles/push_event.rb

@@ -70,7 +70,7 @@ module PushEvent
     if new_ref?
       "pushed new"
     elsif rm_ref?
-      "removed"
+      "deleted"
     else
       "pushed to"
     end