Story:
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https://www.pivotaltracker.com/story/show/80684230
Changes:
-------
- Corrected the bug: AlignmentUtils#createReadAlignedToRef was
not realigning against the reference but the best haplotype for
the read.
Test:
----
- Added integration test in HaplotypeCallerIntegrationTest to check
that the bug has been fixed.
- Fixed md5s modified by this change; these are cause due to small
changes in the state of the random-number generator and read vs
variant site overlapping.