Only forward reads produced with paired output --unclassified-out option

[RJBeng]

Hi,

This is in relation to #102

kraken --threads 8 --preload --db database --fastq-input --gzip-compressed --paired s1_for.fq.gz s1_rev.fq.gz --out-fmt paired --fastq-output --unclassified-out s1_uc --output unclassified.txt

Using the bug fixed classify.cpp #103 still produced only s1_uc file containing unclassified forward fastq reads, not s1_uc_R1.fastq and s1_uc_R2.fastq

Thanks
Rebecca