Don't need these line-height rules

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5388 2fea6a4d-a838-0410-917b-93a53c48e9d2
jQuery UI draggable needs a z-index value

git-svn-id: http://textpattern.googlecode.com/svn/development/4.x@5389 2fea6a4d-a838-0410-917b-93a53c48e9d2
Merge remote-tracking branch 'upstream/master' into jquery-ui-integration