misc changes
incorporate ability to check for finished sequences (but not the actual quitting)
took out checks for modules, as we don't use any anymore
Added ability to specify a particular filename for the blast_file (instead of always using a tempfile)
If the file *ends* in q, not just contains "fastq"
made function "exit_with_msg" to handle details of quitting unexpectedly.
should only open the CONTIGS_FH file right before writing to it, then should close.
Die if blastn doesn't find any reads.
Reorganizing code.
trying to figure out markdown
still trying to figure out markdown
again!
yet again!
blergh
change name to makelibrary.pl
Merge branch 'pr/20'

Conflicts:
	README.md