Frontend to send template name instead of on/off

The params were not getting a value other than `project_templates:"on"`
so the backend wasn't sure what template to use.

Fixes gitlab-org/gitlab-ce#36492

app/controllers/projects_controller.rb

@@ -28,7 +28,7 @@ class ProjectsController < Projects::ApplicationController
   end
 
   def create
-    @project = ::Projects::CreateService.new(current_user, project_params).execute
+    @project = ::Projects::CreateService.new(current_user, project_params.merge(template_name: params[:template_name])).execute
 
     if @project.saved?
       cookies[:issue_board_welcome_hidden] = { path: project_path(@project), value: nil, expires: Time.at(0) }

app/views/projects/_project_templates.html.haml

@@ -5,6 +5,6 @@
     Blank
   - Gitlab::ProjectTemplate.all.each do |template|
     .btn
-      %input{ type: "radio",  autocomplete: "off", name: "project_templates", id: template.name }
+      %input{ type: "radio",  autocomplete: "off", name: "project[template_name]", id: template.name, value: template.name }
       = custom_icon(template.logo)
       = template.title

spec/features/projects_spec.rb

@@ -18,7 +18,7 @@ feature 'Project' do
         click_button "Create project"
       end
 
-      expect(page).to have_content 'This project Loading..'
+      expect(page).to have_content template.name
     end
   end