Latest version of public theme from upstream

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5494 2fea6a4d-a838-0410-917b-93a53c48e9d2
Use txp:output_form instead of txp:article for comments display in public theme

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5495 2fea6a4d-a838-0410-917b-93a53c48e9d2
Merge remote-tracking branch 'upstream/master'