添加一些对代码理解的注释

app/models/issue.rb

@@ -64,7 +64,9 @@ class Issue < ActiveRecord::Base
                         },
                 :url => Proc.new {|o| {:controller => 'issues', :action => 'show', :id => o}},
                 :type => Proc.new {|o| 'issue' + (o.closed? ? ' closed' : '') }
-
+  # Time 2015-01-31 13:52:53
+  # Author lizanle
+  # Description 将hash传进去
   acts_as_activity_provider :find_options => {:include => [:project, :author, :tracker]},
                             :author_key => :author_id