Correct url for Twitter share button.
Correct way generate url for Disqus thread.
Fixes #17: correct pages for showing widgets.
Fixes #18: correct tags registration for admin.
Fixes #19: showing empty tags widget.
Correct text on empty post list.
Fixes #20: correct tags widget title.
Fixes #26: shuffle tags in tags widgets on each showing.
Fixes #18: correct tags registration for admin.
Fixes #21: add Twitter widget.
Fixes #22: add GitHub widget.
Fixes #24: filtering post list on string.
Fixes #25: AJAX-sorting post list.
Fixes #27: AJAX-updating tags cloud.
Correct message in empty tags cloud.
Correct message in Twitter widget.
Correct widgets showing on small screens.
Correct GitHub widget parameters.
Fixes #23: add support filtering post list with few tags.