spqr/toc updated

I recently updatet spqr/toc to version 1.0.6 and 1.0.7.

There have been minor problems:

• If the toc was empty, the ol element has still been rendered. Thanks to the developer of tocbot this is no longer the case. I added a CSS snippet, that hides the .toc div if it's empty.

• The JavaScript interfered with Pagekit's JS. Once spqr/toc was enabled, links like <a href="#">Reply</a> caused a scrolling back to the top of the page. I spotted an issue in the used JavaScript dependency and the developer fixed it within a few hours.

Written by Roman on {{ "2018-02-21T15:02:54+00:00" | date "longDate" }}