Merge branch 'https'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Improve notifications

1) Prevent "You have 0 unread post" on launch
2) Make a new notification replace the old one via tags
3) Add `onclick` function to open the page and close the notification
Improve notifications further

1) Add an option to auto-close the notification after N seconds
2) Clean up code
Merge pull request #14 from kav2k/notification

Improving notifications