allow enabling existing S3 repos

templates/configurators/enables3.hamlet

@@ -0,0 +1,30 @@
+<div .span9 .hero-unit>
+  <h2>
+    Enabling #{description}
+  <p>
+    To use this Amazon S3 repository, you need an Access Key ID, and a #
+    Secret Access Key. These access keys will be stored in a file that #
+    only you can access.
+  <p>
+    If this repository uses your Amazon S3 account, you can #
+    <a href="https://portal.aws.amazon.com/gp/aws/securityCredentials#id_block">
+      look up your access keys. #
+    If this repository uses someone else's Amazon S3 account, they #
+    can generate access keys for you, using their #
+    <a href="https://console.aws.amazon.com/iam/home">
+      IAM Management Console.
+  <p>
+    <form .form-horizontal enctype=#{enctype}>
+      <fieldset>
+        ^{form}
+        ^{authtoken}
+        <div .form-actions>
+          <button .btn .btn-primary type=submit onclick="$('#workingmodal').modal('show');">
+            Enable S3 repository
+<div .modal .fade #workingmodal>
+  <div .modal-header>
+    <h3>
+      Enabling repository ...
+  <div .modal-body>
+    <p>
+      Enabling this Amazon S3 repository. This could take a minute.