User profile restyle. Feed(Atom) links for commits & issues

app/assets/images/rss_icon_gray.png

app/assets/stylesheets/application.css

app/assets/stylesheets/projects.css.scss

app/controllers/keys_controller.rb

app/models/user.rb

app/views/commits/index.html.haml

app/views/issues/index.html.haml

app/views/keys/_show.html.haml

app/views/keys/create.js.haml

app/views/keys/index.html.haml

app/views/keys/show.html.haml

app/views/layouts/_head_panel.html.erb

app/views/layouts/_middle_panel.html.haml

app/views/profile/password.html.haml

app/views/profile/show.html.haml

spec/requests/keys_spec.rb