In VOTable 1.2, the INFO element is allowed before the DATA element inside of a TABLE element.  This fixes that.  (For an example file, see http://gsss.stsci.edu/webservices/vo/ConeSearch.aspx?CAT=GSC23&RA=0&DEC=91.0&SR=0.1)
Merge pull request #1000 from mdboom/votable/info-under-table

io.votable: Fix dropping of INFO element inside TABLE element