Increase import timeout from 2 to 4 minutes

app/views/projects/import.html.haml

@@ -25,6 +25,6 @@
           .bs-callout.bs-callout-info
             This url must be publicly accessible or you can add a username and password like this: https://username:password@gitlab.com/company/project.git.
             %br
-            The import will time out after 2 minutes. For big repositories, use a clone/push combination.
+            The import will time out after 4 minutes. For big repositories, use a clone/push combination.
       .form-actions
         = f.submit 'Retry import', class: "btn btn-create", tabindex: 4

lib/gitlab/backend/shell.rb

@@ -27,7 +27,7 @@ module Gitlab
     #   import_repository("gitlab/gitlab-ci", "https://github.com/randx/six.git")
     #
     def import_repository(name, url)
-      system "#{gitlab_shell_path}/bin/gitlab-projects", "import-project", "#{name}.git", url
+      system "#{gitlab_shell_path}/bin/gitlab-projects", "import-project", "#{name}.git", url, '240'
     end
 
     # Move repository