Fixed bug in handling bar series with only one item
Fixed bug in handling bar series with only one item

git-svn-id: 6dff17d421233d5ed6d1b8ed25469b710f6e980a@46 1e0a6537-2640-0410-bfb7-f154510ff394

rfunduk/flot,ryleyb/flot-holding,elventear/flot-svn