Add tooltips to home panel buttons.

app/views/projects/_home_panel.html.haml

@@ -18,17 +18,12 @@
   .project-repo-buttons
     .split-one
       = render 'projects/buttons/star'
-
-      - unless empty_repo
       = render 'projects/buttons/fork'
 
     = render "shared/clone_panel"
-    .split-repo-buttons 
-      - unless empty_repo
-        - if can? current_user, :download_code, @project
-          = link_to archive_namespace_project_repository_path(@project.namespace, @project, ref: @ref, format: 'zip'), class: 'btn', rel: 'nofollow' do
-            = icon('download fw')
     
+    .split-repo-buttons
+      = render "projects/buttons/download"
       = render 'projects/buttons/dropdown'
-    = render 'projects/buttons/notifications'
 
+    = render 'projects/buttons/notifications'

app/views/projects/buttons/_download.html.haml

+- unless @project.empty_repo?
+  - if can? current_user, :download_code, @project
+    = link_to archive_namespace_project_repository_path(@project.namespace, @project, ref: @ref, format: 'zip'), class: 'btn has_tooltip', rel: 'nofollow', title: "Download ZIP" do
+      = icon('download')

app/views/projects/buttons/_dropdown.html.haml

@@ -32,5 +32,3 @@
           = link_to new_namespace_project_tag_path(@project.namespace, @project) do
             = icon('tags fw')
             New tag
-
-

app/views/projects/buttons/_fork.html.haml

-- if current_user && can?(current_user, :fork_project, @project)
+- unless @project.empty_repo?
+  - if current_user && can?(current_user, :fork_project, @project)
     - if current_user.already_forked?(@project) && current_user.manageable_namespaces.size < 2
-    = link_to namespace_project_path(current_user, current_user.fork_of(@project)), title: 'Go to your fork', class: 'btn' do
+      = link_to namespace_project_path(current_user, current_user.fork_of(@project)), title: 'Go to your fork', class: 'btn has_tooltip' do
         = icon('code-fork fw')
         Fork
         %span.count
           = @project.forks_count
     - else
-    = link_to new_namespace_project_fork_path(@project.namespace, @project), title: "Fork project", class: 'btn' do
+      = link_to new_namespace_project_fork_path(@project.namespace, @project), title: "Fork project", class: 'btn has_tooltip' do
         = icon('code-fork fw')
         %span.count
           = @project.forks_count

app/views/projects/buttons/_star.html.haml

 - if current_user
-  = link_to toggle_star_namespace_project_path(@project.namespace, @project), class: 'btn star-btn toggle-star', method: :post, remote: true do
+  = link_to toggle_star_namespace_project_path(@project.namespace, @project), class: 'btn star-btn toggle-star has_tooltip', method: :post, remote: true, title: "Star project" do
     = icon('star fw')
     %span.count
       = @project.star_count

app/views/shared/_clone_panel.html.haml

@@ -21,7 +21,6 @@
         = gitlab_config.protocol.upcase
   = text_field_tag :project_clone, default_url_to_repo(project), class: "js-select-on-focus form-control", readonly: true
   - if project.kind_of?(Project)
-    .input-group-addon
-      .visibility-level-label.has_tooltip{'data-title' => "#{visibility_level_label(project.visibility_level)} project" }
+    .input-group-addon.has_tooltip{title: "#{visibility_level_label(project.visibility_level)} project", data: { container: "body" } }
+      .visibility-level-label
         = visibility_level_icon(project.visibility_level)
-