POS models created with 2.x are trained with different parameters due to conditional

POS models that are trained with version 2.x are trained with different parameters than what's expected due to a conditional in POSTaggerFactory that looked at the minor revision. This conditional assumes the major version is 1.

The conditional needs updated to check the major version, too.

To reproduce, run the ConllXPosTaggerEval.evalDanishMaxentGis() test.