diff --git a/README.md b/README.md
index ee029f9b..e910dc95 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,21 @@
-# Welcome to GitLab [![build status](https://secure.travis-ci.org/gitlabhq/gitlabhq.png)](https://travis-ci.org/gitlabhq/gitlabhq) [![build status](https://secure.travis-ci.org/gitlabhq/grit.png)](https://travis-ci.org/gitlabhq/grit) [![Code Climate](https://codeclimate.com/badge.png)](https://codeclimate.com/github/gitlabhq/gitlabhq) [![Dependency Status](https://gemnasium.com/gitlabhq/gitlabhq.png)](https://gemnasium.com/gitlabhq/gitlabhq)
+# Welcome to GitLab! Self hosted Git management software
+
+
+## Badges:
+
+* master: travis-ci.org [![build status](https://secure.travis-ci.org/gitlabhq/gitlabhq.png)](https://travis-ci.org/gitlabhq/gitlabhq)a
+* master: ci.gitlab.org [![CI](http://ci.gitlab.org/projects/1/status?ref=master)](http://ci.gitlab.org/projects/1?ref=master)
+* [![Code Climate](https://codeclimate.com/badge.png)](https://codeclimate.com/github/gitlabhq/gitlabhq)
+* [![Dependency Status](https://gemnasium.com/gitlabhq/gitlabhq.png)](https://gemnasium.com/gitlabhq/gitlabhq)
 
 GitLab is a free project and repository management application
 
-[![CI](http://ci.gitlab.org/projects/1/status?ref=master)](http://ci.gitlab.org/projects/1?ref=master)
 
 ## Application details
 
-* based on Ruby on Rails
+* powered by Ruby on Rails
+* its completely free and open source
 * distributed under the MIT License
-* works with gitolite
 
 ## Requirements
 
@@ -16,27 +23,16 @@ GitLab is a free project and repository management application
 * ruby 1.9.3+
 * MySQL
 * git
-* gitolite
+* gitlab-shell
 * redis
 
 ## Install
 
-Checkout wiki pages for installation information, migration, etc.
+Checkout [wiki](https://github.com/gitlabhq/gitlabhq/wiki) pages for installation information, migration, etc.
 
-## Community
+## [Community](http://gitlab.org/community/)
 
-[Google Group](https://groups.google.com/group/gitlabhq)
-
-## Contacts
-
-Twitter:
-
- * @gitlabhq
- * @dzaporozhets 
-
-Email
-
- * m@gitlabhq.com
+## [Contact](http://gitlab.org/contact/)
 
 ## Contribute
 
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 12a6dd2d..c26d40c5 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -177,15 +177,8 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def merge!(user_id)
+    self.author_id_of_changes = user_id
     self.merge
-
-    Event.create(
-      project: self.project,
-      action: Event::MERGED,
-      target_id: self.id,
-      target_type: "MergeRequest",
-      author_id: user_id
-    )
   end
 
   def automerge!(current_user)
diff --git a/app/observers/activity_observer.rb b/app/observers/activity_observer.rb
index 919a50f0..152e4977 100644
--- a/app/observers/activity_observer.rb
+++ b/app/observers/activity_observer.rb
@@ -39,4 +39,18 @@ class ActivityObserver < ActiveRecord::Observer
       author_id: record.author_id_of_changes
     )
   end
+
+  def after_merge(record, transition)
+    # Since MR can be merged via sidekiq
+    # to prevent event duplication do this check
+    return true if record.merge_event
+
+    Event.create(
+      project: record.project,
+      target_id: record.id,
+      target_type: record.class.name,
+      action: Event::MERGED,
+      author_id: record.author_id_of_changes
+    )
+  end
 end
diff --git a/lib/api/projects.rb b/lib/api/projects.rb
index a65d6584..abd115d3 100644
--- a/lib/api/projects.rb
+++ b/lib/api/projects.rb
@@ -336,7 +336,7 @@ module Gitlab
         authorize! :download_code, user_project
 
         page = params[:page] || 0
-        per_page = params[:per_page].to_i || 20
+        per_page = (params[:per_page] || 20).to_i
         ref = params[:ref_name] || user_project.try(:default_branch) || 'master'
 
         commits = user_project.repository.commits(ref, nil, per_page, page * per_page)