Trial license modal dialog

app/views/admin/licenses/_upload_trial_license.html.haml

+- license_key = params[:trial_key]
+#modal-upload-trial-license.modal-upload-trial-license.modal.fade.in{ tabindex: -1, role: 'dialog' }
+  .modal-dialog
+    .modal-content
+      .modal-body
+        %button.close{ type: 'button', data: { dismiss: 'modal' }, aria: { label: 'Close' } }
+          %span ×
+        .modal-body-contents
+          .trial-activated-graphic.prepend-top-15
+            = custom_icon('ee_trial_license_activated', size: 100)
+          %h3.confirmation-title
+            Your trial license was issued!
+          %p.confirmation-desc.lead
+            Your trial license was issued and activated. Install it
+            to enjoy GitLab Enterprise Edition Premium for 30 days.
+          = form_for License.new, url: admin_license_path, html: { multipart: true, class: 'form-horizontal fieldset-form' } do |f|
+            = f.hidden_field :data, value: license_key
+            .well.trial-license-preview.prepend-top-15
+              = license_key
+            .modal-footer.form-actions
+              %button.btn.btn-default{ type: 'button', data: { dismiss: 'modal' } } Cancel
+              = f.submit 'Install license', class: 'btn btn-primary'
+:javascript
+  $('#modal-upload-trial-license').modal('show');