Fix commit aa1cfcd4f

Sometimes last is not set
Error if font is not set in fix_justification

This happens if <b>foo</b> found in data but
no bold font is set.
Fix bug introduced in a recent change
Bugfix for multi column text

We don't need the vlist inside the vlist,
therefore we can remove the capsule from the
enclosed hlist.

Multi column text (textblock colums="2") was
affected with this vlist/vlist structure
because the line count was on the enclosing
hlists.
Bugfix: don't ignore tablerule in tables