Update _foot.html.haml
Update _head.html.haml
Update _nav.html.haml
Update application.yml.example
Update 1_settings.rb
Use gitlab_site_title
Merge pull request #1 from amouhzi/patch-1

Use gitlab_site_title
Use gitlab_site_title
add gitlab_site_title to configuration
initalize gitlab_site_title
fix conflicts