Add export of query fasta file, Implements #12

js/d3.boxplot.js

js/dgenies.result.export.js

lib/functions.py

lib/job_manager.py

lib/mail_templates/dl_fasta.html

lib/mailer.py

lib/paf.py

requirements.txt

srv/config_reader.py

srv/main.py

srv/templates/results.html