Primerserver2

(1) Add sequence name to the "Position" Column in webUI
(2) deal with splitted BLAST databases in webUI

Fix webUI bug when using Gzipped FASTA as templates

Fix TSV output in web UI. This bug is originated from cda6c1a38790232287f98e96e65d26745e11665e

beta 16: Support gzipped FASTA FAI + normal blastdb

beta 15: In checking specificity mode, if the first database has no amplicons, then it will returns 0 instead of NA