Temporary fix to work around changing / in URLs that need it.
This allows Comments::sort_comments() to be filtered.
Merge pull request #1 from coderforlife/extensible-comments

This allows Comments::sort_comments() to be filtered.
Fixed typo.
Merge pull request #2 from coderforlife/extensible-comments

Fixed typo.
Merge branch 'master' of https://github.com/habari/system
Updating with upstream master.
Merge branch 'master' of github.com:coderforlife/c4l-habari-system
Merge branch 'master' of https://github.com/habari/system
Merge branch 'master' of https://github.com/habari/system
Merge branch 'master' of https://github.com/habari/system

Conflicts:
	classes/comments.php
Had to re-add all submodules
Merge branch 'master' of github.com:coderforlife/c4l-habari-system