fixed previous checkin - resize MD and CIGAR buffers according to the batch size
fixed previous checkin - resize MD and CIGAR buffers according to the batch size

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 17992787]

kimrutherford/nvbio,NVlabs/nvbio,NVlabs/nvbio,NVlabs/nvbio,kimrutherford/nvbio,kimrutherford/nvbio,kimrutherford/nvbio,NVlabs/nvbio