highlight Liu et al. It seems good.
added Bai et al. Seems good, too.
added another paper
removed debugging code
removed hla typing - not good enough
save reads mapped to each HLA gene

for downstream typing
output all overlapping HLA hits

A contig longer than HLA genes may not get hits to HLA and thus won't be used
in typing.
bugfix: alignments not outputted
bugfix: .ctw not generated properly
Merge branch 'dev'