Fixed backup bugs with deleted pads.

static/cryptopad.html

@@ -187,7 +187,9 @@
 			}
 			
 			for (var pad in pads) {
-				addPadList(pads[pad]);
+                if (pads[pad] != null) {
+				    addPadList(pads[pad]);
+                }
 			}
 			$("#searchtext").attr("data-source", JSON.stringify(pads));
 		}
@@ -219,18 +221,27 @@
             getKVSItem(hashTitle(pads[pad]), function(data) {
                 backup[pads[pad]] = sjcl.decrypt(key, data);
                 backupWaiting--;
-                if (backupWaiting == 0) {
-                    $("#backupDlg").modal();
-                    $("#backupText").val(JSON.stringify(backup))
-                }
+                doShowBackupDlg();
             })
         }
 
+        function doShowBackupDlg() {
+            if (backupWaiting == 0) {
+                $("#backupDlg").modal();
+                $("#backupText").val(JSON.stringify(backup))
+            }
+        }
+
 		function doBackup() {
 			backup = new Object();
 			backupWaiting = pads.length;
-			for (var pad in pads) {
-                backupKVS(pad);
+			for (var pad = 0; pad < pads.length; pad++) {
+                if ((pads[pad] == null) || (typeof pads[pad] === 'undefined')) {
+                    backupWaiting--;
+                    doShowBackupDlg();
+                } else {
+                    backupKVS(pad);
+                }
 			}
 		}