[IMP] during image upload, disable save button

hide it and replace it with a button telling the user what we're
currently doing (uploading the image).

Leave the possibility of discarding the whole thing and going away
though.

bzr revid: xmo@openerp.com-20131106152412-eb283vghb18aafyr

addons/website/static/src/css/editor.css

@@ -1,4 +1,3 @@
-@charset "utf-8";
 /* ---- CKEditor Minimal Reset ---- */
 .navbar.navbar-inverse .cke_chrome {
   border: none;
@@ -239,6 +238,14 @@ ul.oe_menu_editor li.mjs-nestedSortable-expanded > div > .disclose > span:before
   margin-bottom: 0.5em;
 }
 
+.modal.nosave .modal-footer button.save {
+  display: none;
+}
+.modal.nosave .modal-footer button.wait {
+  display: inline-block !important;
+  visibility: visible !important;
+}
+
 .cke_widget_wrapper {
   position: static !important;
 }