Changes in Beagle 5.0
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* Much faster genotype phasing and genotype imputation algorithms.
* An improved reference file format: bref3 which supersedes bref version 2.
* Window and overlap parameters use centiMorgan units.
* Some user parameters are changed (see documentation).
* Refined IBD algorithm removed from Beagle and made a stand-alone program.
* Input VCF file must contain genotype (GT) fields (GL/PL fields are ignored).

Beagle 5.0 (14May18.ff7) release notes
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* First release of Beagle version 5.0

Beagle 5.0 (16May18.771) release notes
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* Fixed a bug when phasing and imputing in the same analysis

Beagle 5.0 (24May18.276.jar) release notes
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* Minor modification to phasing algorithm

Beagle 5.0 (28May18.405) release notes
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* Fixed a concurrency bug

Beagle 5.0 (30May18.3bb) release notes
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* Improved error messages

Beagle 5.0 (04Jun18.a80) release notes
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* Fixed a bug in phasing when ALT field is '.'

Beagle 5.0 (10Jun18.811) release notes
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* Fix bug appearing when there is a large inter-marker distance

Beagle 5.0 (03Jul18.40b) release notes
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* Fixed a bug appearing when reference panel ALT field is '.'

Beagle 5.0 (10Sep18.879) release notes
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* Fixed a bug in imputation output when reference panel ALT field is '.'

Beagle 5.0 (15Sep18.8a0) release notes
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* Fixed a bug appearing when analysis window has only one target marker

Beagle 5.0 (28Sep18.793) release notes
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* Refactored several classes
