Set up
  $ mkdir -p $OUTDIR

Test dataset.xml as input
  $ $BLASR_EXE $DATDIR/test_dataset/chunking.subreadset.xml $DATDIR/ecoli_reference.fasta --unaligned $OUTDIR/unaligned.txt --noPrintUnalignedSeqs --concordant 1>/dev/null && echo $?
  [INFO]* (glob)
  [INFO]* (glob)
  0
  $ head -5 $OUTDIR/unaligned.txt
  m150404_101626_42267_c100807920800000001823174110291514_s1_p0/55/0_1380
  m150404_101626_42267_c100807920800000001823174110291514_s1_p0/55/1432_3136
  m150404_101626_42267_c100807920800000001823174110291514_s1_p0/480/11699_11988
  m150404_101626_42267_c100807920800000001823174110291514_s1_p0/480/12033_13456
  m150404_101626_42267_c100807920800000001823174110291514_s1_p0/480/13519_14067

  $ $BLASR_EXE $DATDIR/ecoli_subset.fasta $DATDIR/ecoli_reference.fasta --unaligned $OUTDIR/unaligned.txt --noPrintUnalignedSeqs 1>/dev/null && echo $?
  [INFO]* (glob)
  [INFO]* (glob)
  0
  $ head -5 $OUTDIR/unaligned.txt
  m121004_000921_42130_c100440700060000001523060402151341_s1_p0/8/2724_3021
  m121004_000921_42130_c100440700060000001523060402151341_s1_p0/13/0_278
  m121004_000921_42130_c100440700060000001523060402151341_s1_p0/13/327_954
  m121004_000921_42130_c100440700060000001523060402151341_s1_p0/13/1004_1580
  m121004_000921_42130_c100440700060000001523060402151341_s1_p0/13/1625_2202