move saved revs notification to gritter

src/locales/en.json

@@ -121,6 +121,7 @@
 
   "timeslider.unnamedauthors": "{{num}} unnamed {[plural(num) one: author, other: authors ]}",
   "pad.savedrevs.marked": "This revision is now marked as a saved revision",
+  "pad.savedrevs.timeslider": "You can see saved revisions by visiting the timeslider",
   "pad.userlist.entername": "Enter your name",
   "pad.userlist.unnamed": "unnamed",
   "pad.userlist.guest": "Guest",

src/static/js/pad_savedrevs.js

@@ -18,7 +18,16 @@ var pad;
 
 exports.saveNow = function(){
   pad.collabClient.sendMessage({"type": "SAVE_REVISION"});
-  alert(_("pad.savedrevs.marked"));
+  $.gritter.add({
+    // (string | mandatory) the heading of the notification
+    title: _("pad.savedrevs.marked"),
+    // (string | mandatory) the text inside the notification
+    text: _("pad.savedrevs.timeslider") || "You can view saved revisions in the timeslider",
+    // (bool | optional) if you want it to fade out on its own or just sit there
+    sticky: false,
+    // (int | optional) the time you want it to be alive for before fading out
+    time: '2000'
+  });
 }
 
 exports.init = function(_pad){