from an array of bases to an object (ReferenceContext), and LocusContext has been renamed to reflect
the fact that it contains contextual information only about the alignments, not the locus in general.
git-svn-id: file:///humgen/gsa-scr1/gsa-engineering/svn_contents/trunk@1376 348d0f76-0448-11de-a6fe-93d51630548a
(Really, all we want to do is spit out all reads, but this allows the Walker to do other things with the reads if it wants)
git-svn-id: file:///humgen/gsa-scr1/gsa-engineering/svn_contents/trunk@641 348d0f76-0448-11de-a6fe-93d51630548a