added a pair of seqs to test_good.fasta
Now generates libraries of the format $working_sra.#.1.fasta, $working_sra.#.2.fasta
First pass at reading alternate libraries if -processes is specified.
boo, fixed error message.
minor reorganization of code.
Single-threading of partial libraries works.
sort just using the seq name as key.
more timestamps to see where the bottlenecks are.
trying parallel flag for sort
porting the sort_fasta logic to perl (first step towards rewriting)
more descriptive print statements
adding more specificity to blast results
chomp line first, instead of in two places later.
Fixes #48
Changing from gawk | sort | gawk to perl flattening, then sorting.

There is definitely a bug if the two paired files aren't identical.
pretty sure this fixes the bug.
Trying to use blast results for seq 1 instead of walking through that fasta file.
parallelizing sort command doesn't make any difference
updating the names of the sort files to remove.
Uninterleaves to flattened fasta in one step from either fasta or fastq.