Update design for realized page as well as front page
modified:   app/assets/images/footer.png
modified:   app/assets/images/nav.png
renamed:    app/assets/images/wood_back_div.jpg -> app/assets/images/wood_back.jpg
modified:   app/assets/stylesheets/main.scss
modified:   app/assets/stylesheets/variables.scss
modified:   app/views/pages/index.html.erb
modified:   app/views/pages/show.html.erb
Add gem for asset pipeline in heroku and rails 4 compatibility
Change body width and background
Untilt contact infos
Update style of nav
modified:   app/assets/images/nav.png
modified:   app/assets/images/nav.png