Merge branch 'rs-fixed-width-nav' into 'master'

Use fixed width icons in all nav sidebars

| Before (watch the Network and Graphs icons as the sidebar collapses): | After: |
| :--------: | :------: |
|![Screen_Recording_2015-04-23_at_02.31_PM.mov](https://gitlab.com/gitlab-org/gitlab-ce/uploads/338aa382ff7609978cd900db29379f3f/Screen_Recording_2015-04-23_at_02.31_PM.mov.gif)|![Screen_Recording_2015-04-23_at_02.30_PM.mov](https://gitlab.com/gitlab-org/gitlab-ce/uploads/24af635f253688690b42da60271e7afb/Screen_Recording_2015-04-23_at_02.30_PM.mov.gif)|

Uses the `icon` helper, because I can't help myself!

See merge request !566

app/assets/stylesheets/generic/sidebar.scss

@@ -52,7 +52,7 @@
     padding: 8px 15px;
     font-size: 13px;
     line-height: 20px;
-    padding-left: 20px;
+    padding-left: 16px;
 
     &:hover {
       text-decoration: none;

app/views/layouts/nav/_admin.html.haml

 %ul.nav.nav-sidebar
   = nav_link(controller: :dashboard, html_options: {class: 'home'}) do
     = link_to admin_root_path, title: "Stats" do
-      %i.fa.fa-dashboard
+      = icon('dashboard fw')
       %span
         Overview
   = nav_link(controller: :projects) do
     = link_to admin_namespaces_projects_path, title: 'Projects' do
-      %i.fa.fa-cube
+      = icon('cube fw')
       %span
         Projects
   = nav_link(controller: :users) do
     = link_to admin_users_path, title: 'Users' do
-      %i.fa.fa-user
+      = icon('user fw')
       %span
         Users
   = nav_link(controller: :groups) do
     = link_to admin_groups_path, title: 'Groups' do
-      %i.fa.fa-group
+      = icon('group fw')
       %span
         Groups
   = nav_link(controller: :deploy_keys) do
     = link_to admin_deploy_keys_path, title: 'Deploy Keys' do
-      %i.fa.fa-key
+      = icon('key fw')
       %span
         Deploy Keys
   = nav_link(controller: :logs) do
     = link_to admin_logs_path, title: 'Logs' do
-      %i.fa.fa-file-text
+      = icon('file-text fw')
       %span
         Logs
   = nav_link(controller: :broadcast_messages) do
     = link_to admin_broadcast_messages_path, title: 'Broadcast Messages' do
-      %i.fa.fa-bullhorn
+      = icon('bullhorn fw')
       %span
         Messages
   = nav_link(controller: :hooks) do
     = link_to admin_hooks_path, title: 'Hooks' do
-      %i.fa.fa-external-link
+      = icon('external-link fw')
       %span
         Hooks
   = nav_link(controller: :background_jobs) do
     = link_to admin_background_jobs_path, title: 'Background Jobs' do
-      %i.fa.fa-cog
+      = icon('cog fw')
       %span
         Background Jobs
 
   = nav_link(controller: :applications) do
     = link_to admin_applications_path, title: 'Applications' do
-      %i.fa.fa-cloud
+      = icon('cloud fw')
       %span
         Applications
 
   = nav_link(controller: :services) do
     = link_to admin_application_settings_services_path, title: 'Service Templates' do
-      %i.fa.fa-copy
+      = icon('copy fw')
       %span
         Service Templates
 
   = nav_link(controller: :application_settings, html_options: { class: 'separate-item'}) do
     = link_to admin_application_settings_path, title: 'Settings' do
-      %i.fa.fa-cogs
+      = icon('cogs fw')
       %span
         Settings
-

app/views/layouts/nav/_dashboard.html.haml

 %ul.nav.nav-sidebar
   = nav_link(path: 'dashboard#show', html_options: {class: 'home'}) do
     = link_to root_path, title: 'Home', class: 'shortcuts-activity' do
-      %i.fa.fa-dashboard
+      = icon('dashboard fw')
       %span
         Your Projects
   = nav_link(path: 'projects#starred') do
     = link_to starred_dashboard_projects_path, title: 'Starred Projects' do
-      %i.fa.fa-star
+      = icon('star fw')
       %span
         Starred Projects
   = nav_link(controller: :groups) do
     = link_to dashboard_groups_path, title: 'Groups' do
-      %i.fa.fa-group
+      = icon('group fw')
       %span
         Groups
   = nav_link(controller: :milestones) do
     = link_to dashboard_milestones_path, title: 'Milestones' do
-      %i.fa.fa-clock-o
+      = icon('clock-o fw')
       %span
         Milestones
   = nav_link(path: 'dashboard#issues') do
     = link_to assigned_issues_dashboard_path, title: 'Issues', class: 'shortcuts-issues' do
-      %i.fa.fa-exclamation-circle
+      = icon('exclamation-circle fw')
       %span
         Issues
         %span.count= current_user.assigned_issues.opened.count
   = nav_link(path: 'dashboard#merge_requests') do
     = link_to assigned_mrs_dashboard_path, title: 'Merge Requests', class: 'shortcuts-merge_requests' do
-      %i.fa.fa-tasks
+      = icon('tasks fw')
       %span
         Merge Requests
         %span.count= current_user.assigned_merge_requests.opened.count
   = nav_link(controller: :help) do
     = link_to help_path, title: 'Help' do
-      %i.fa.fa-question-circle
+      = icon('question-circle fw')
       %span
         Help

app/views/layouts/nav/_explore.html.haml

 %ul.nav.nav-sidebar
   = nav_link(path: 'projects#trending') do
     = link_to explore_root_path do
-      %i.fa.fa-comments
+      = icon('comments fw')
       %span Trending Projects
   = nav_link(path: 'projects#starred') do
     = link_to starred_explore_projects_path do
-      %i.fa.fa-star
+      = icon('star fw')
       %span Most Starred Projects
   = nav_link(path: 'projects#index') do
     = link_to explore_projects_path do
-      %i.fa.fa-bookmark
+      = icon('bookmark fw')
       %span All Projects
   = nav_link(controller: :groups) do
     = link_to explore_groups_path do
-      %i.fa.fa-group
+      = icon('group fw')
       %span All Groups
 

app/views/layouts/nav/_group.html.haml

 %ul.nav.nav-sidebar
   = nav_link(path: 'groups#show', html_options: {class: 'home'}) do
     = link_to group_path(@group), title: "Home" do
-      %i.fa.fa-dashboard
+      = icon('dashboard fw')
       %span
         Activity
   - if current_user
     = nav_link(controller: [:group, :milestones]) do
       = link_to group_milestones_path(@group), title: 'Milestones' do
-        %i.fa.fa-clock-o
+        = icon('clock-o fw')
         %span
           Milestones
   = nav_link(path: 'groups#issues') do
     = link_to issues_group_path(@group), title: 'Issues' do
-      %i.fa.fa-exclamation-circle
+      = icon('exclamation-circle fw')
       %span
         Issues
         - if current_user
           %span.count= Issue.opened.of_group(@group).count
   = nav_link(path: 'groups#merge_requests') do
     = link_to merge_requests_group_path(@group), title: 'Merge Requests' do
-      %i.fa.fa-tasks
+      = icon('tasks fw')
       %span
         Merge Requests
         - if current_user
           %span.count= MergeRequest.opened.of_group(@group).count
   = nav_link(controller: [:group_members]) do
     = link_to group_group_members_path(@group), title: 'Members' do
-      %i.fa.fa-users
+      = icon('users fw')
       %span
         Members
 
   - if can?(current_user, :admin_group, @group)
     = nav_link(html_options: { class: "#{"active" if group_settings_page?} separate-item" }) do
       = link_to edit_group_path(@group), title: 'Settings', class: "tab no-highlight" do
-        %i.fa.fa-cogs
+        = icon ('cogs fw')
         %span
           Settings
-          %i.fa.fa-angle-down
+          = icon ('angle-down fw')
 
   - if group_settings_page?
     = render 'groups/settings_nav'

app/views/layouts/nav/_profile.html.haml

 %ul.nav.nav-sidebar
   = nav_link(path: 'profiles#show', html_options: {class: 'home'}) do
     = link_to profile_path, title: "Profile" do
-      %i.fa.fa-user
+      = icon('user fw')
       %span
         Profile
   = nav_link(controller: :accounts) do
     = link_to profile_account_path, title: 'Account' do
-      %i.fa.fa-gear
+      = icon('gear fw')
       %span
         Account
   = nav_link(path: ['profiles#applications', 'applications#edit', 'applications#show', 'applications#new']) do
     = link_to applications_profile_path, title: 'Applications' do
-      %i.fa.fa-cloud
+      = icon('cloud fw')
       %span
         Applications
   = nav_link(controller: :emails) do
     = link_to profile_emails_path, title: 'Emails' do
-      %i.fa.fa-envelope-o
+      = icon('envelope-o fw')
       %span
         Emails
         %span.count= current_user.emails.count + 1
   - unless current_user.ldap_user?
     = nav_link(controller: :passwords) do
       = link_to edit_profile_password_path, title: 'Password' do
-        %i.fa.fa-lock
+        = icon('lock fw')
         %span
           Password
   = nav_link(controller: :notifications) do
     = link_to profile_notifications_path, title: 'Notifications' do
-      %i.fa.fa-inbox
+      = icon('inbox fw')
       %span
         Notifications
 
   = nav_link(controller: :keys) do
     = link_to profile_keys_path, title: 'SSH Keys' do
-      %i.fa.fa-key
+      = icon('key fw')
       %span
         SSH Keys
         %span.count= current_user.keys.count
   = nav_link(path: 'profiles#design') do
     = link_to design_profile_path, title: 'Design' do
-      %i.fa.fa-image
+      = icon('image fw')
       %span
         Design
   = nav_link(path: 'profiles#history') do
     = link_to history_profile_path, title: 'History' do
-      %i.fa.fa-history
+      = icon('history fw')
       %span
         History

app/views/layouts/nav/_project.html.haml

@@ -2,7 +2,7 @@
   - if @project_settings_nav
     = nav_link do
       = link_to project_path(@project), title: 'Back to project', class: "" do
-        %i.fa.fa-caret-square-o-left
+        = icon('caret-square-o-left fw')
         %span
           Back to project
 
@@ -13,48 +13,48 @@
   - else
     = nav_link(path: 'projects#show', html_options: {class: "home"}) do
       = link_to project_path(@project), title: 'Project', class: 'shortcuts-project' do
-        %i.fa.fa-dashboard
+        = icon('dashboard fw')
         %span
           Project
     - if project_nav_tab? :files
       = nav_link(controller: %w(tree blob blame edit_tree new_tree)) do
         = link_to namespace_project_tree_path(@project.namespace, @project, @ref || @repository.root_ref), title: 'Files',  class: 'shortcuts-tree' do
-          %i.fa.fa-files-o
+          = icon('files-o fw')
           %span
             Files
 
     - if project_nav_tab? :commits
       = nav_link(controller: %w(commit commits compare repositories tags branches)) do
         = link_to namespace_project_commits_path(@project.namespace, @project, @ref || @repository.root_ref), title: 'Commits', class: 'shortcuts-commits' do
-          %i.fa.fa-history
+          = icon('history fw')
           %span
             Commits
 
     - if project_nav_tab? :network
       = nav_link(controller: %w(network)) do
         = link_to namespace_project_network_path(@project.namespace, @project, @ref || @repository.root_ref), title: 'Network', class: 'shortcuts-network' do
-          %i.fa.fa-code-fork
+          = icon('code-fork fw')
           %span
             Network
 
     - if project_nav_tab? :graphs
       = nav_link(controller: %w(graphs)) do
         = link_to namespace_project_graph_path(@project.namespace, @project, @ref || @repository.root_ref), title: 'Graphs',  class: 'shortcuts-graphs' do
-          %i.fa.fa-area-chart
+          = icon('area-chart fw')
           %span
             Graphs
 
     - if project_nav_tab? :milestones
       = nav_link(controller: :milestones) do
         = link_to namespace_project_milestones_path(@project.namespace, @project), title: 'Milestones' do
-          %i.fa.fa-clock-o
+          = icon('clock-o fw')
           %span
             Milestones
 
     - if project_nav_tab? :issues
       = nav_link(controller: :issues) do
         = link_to url_for_project_issues(@project, only_path: true), title: 'Issues', class: 'shortcuts-issues' do
-          %i.fa.fa-exclamation-circle
+          = icon('exclamation-circle fw')
           %span
             Issues
             - if @project.default_issues_tracker?
@@ -63,7 +63,7 @@
     - if project_nav_tab? :merge_requests
       = nav_link(controller: :merge_requests) do
         = link_to namespace_project_merge_requests_path(@project.namespace, @project), title: 'Merge Requests', class: 'shortcuts-merge_requests'  do
-          %i.fa.fa-tasks
+          = icon('tasks fw')
           %span
             Merge Requests
             %span.count.merge_counter= @project.merge_requests.opened.count
@@ -71,27 +71,27 @@
     - if project_nav_tab? :labels
       = nav_link(controller: :labels) do
         = link_to namespace_project_labels_path(@project.namespace, @project), title: 'Labels' do
-          %i.fa.fa-tags
+          = icon('tags fw')
           %span
             Labels
 
     - if project_nav_tab? :wiki
       = nav_link(controller: :wikis) do
         = link_to get_project_wiki_path(@project), title: 'Wiki', class: 'shortcuts-wiki' do
-          %i.fa.fa-book
+          = icon('book fw')
           %span
             Wiki
 
     - if project_nav_tab? :snippets
       = nav_link(controller: :snippets) do
         = link_to namespace_project_snippets_path(@project.namespace, @project), title: 'Snippets', class: 'shortcuts-snippets' do
-          %i.fa.fa-file-text-o
+          = icon('file-text-o fw')
           %span
             Snippets
 
     - if project_nav_tab? :settings
       = nav_link(html_options: {class: "#{project_tab_class} separate-item"}) do
         = link_to edit_project_path(@project), title: 'Settings', class: "stat-tab tab no-highlight" do
-          %i.fa.fa-cogs
+          = icon('cogs fw')
           %span
             Settings

app/views/layouts/nav/_snippets.html.haml

 %ul.nav.nav-sidebar
   = nav_link(path: user_snippets_path(current_user), html_options: {class: 'home'}) do
     = link_to user_snippets_path(current_user), title: 'Your snippets' do
-      %i.fa.fa-dashboard
+      = icon('dashboard fw')
       %span
         Your Snippets
   = nav_link(path: snippets_path) do
     = link_to snippets_path, title: 'Discover snippets' do
-      %i.fa.fa-globe
+      = icon('globe fw')
       %span
         Discover Snippets