updates csv parser to skip blank lines

or lines with less than nine columns. --> prevents an IndexOutOfBounceException.
see https://github.com/dirkschumacher/iUPB/commit/721cba72d23ef71f74aee596367df4220f8c04ce for a comparable change to iUPB, where the invalid stwpb csv file blow up production last weekend...
Merge pull request #28 from yippie-io/patch-1

updates csv parser to skip blank lines …