Update ntRootAncestryPredictor.pl

-Add support for streaming .vcf.gz / .vcf.bgz inputs via gunzip/unpigz (no new dependencies)
-Ensure proper filehandle cleanup (close on input/output)
-Initialize $max to avoid undefined comparison warnings
-Minor robustness improvements to input handling and stability

Prepare for release v1.2.0 (#39)

Prepare for release v1.1.6 (#37)

Prepare for release v1.1.5 (#32)

Prepare for release v1.1.4 (#28)

Prepare for v1.1.3 release (#26)

Prepare for release v1.1.2 (#24)

Prepare for release v1.1.1 (#22)

Prepare for release v1.1.0 (#20)

Bump version number (#16)