Changelog updated. Added warnings to username form

CHANGELOG

 v 4.0.0
+  - Reorganized settings
+  - Fixed commits compare
+  - Refactored scss
+  - Improve status checks
+  - Validates presence of User#name
+  - Fixed postgres support
+  - Removed sqlite support
+  - Modified post-receive hook
+  - Milestones can be closed now
+  - Show comment events on dashboard
+  - Quick add team members via group#people page
   - [API] expose created date for hooks and SSH keys
   - [API] list, create issue notes
   - [API] list, create snippet notes

app/views/profiles/account.html.haml

@@ -71,6 +71,9 @@
         %span.update-failed.cred.hide
           %i.icon-ok
           Failed
+        %ul.cred
+          %li It will change web url for personal projects.
+          %li It will change the git path to repositories for personal projects.
       .input
         = f.submit 'Save username', class: "btn save-btn"

config/gitlab.yml.example

+# # # # # # # # # # # # # # # # # # 
+# Gitlab application config file  #
+# # # # # # # # # # # # # # # # # #
 #
 # 1. GitLab app settings