INCA import fails if the last column is empty in one or more rows

[Nicklas Nordborg]

In the report for excluded lines there is a message that some rows has too few columns.

[Nicklas Nordborg]

In 5467:

Fixes #1143: INCA import fails if the last column is empty in one or more rows

Must use String.split() with second argument -1 (eg. line.split("\t", -1)), otherwise trailing empty columns are not included.