a) Ability to specify haplotype size from command line
b) Expand reference context window so we can form haplotypes for longer indel events.
c) small bug fix in temp output writer (to be removed once I can emit vcfs)
git-svn-id: file:///humgen/gsa-scr1/gsa-engineering/svn_contents/trunk@4212 348d0f76-0448-11de-a6fe-93d51630548a