added code common to all db scraping scripts
ignore .fna, .gbk
code for regulonDB
ignore .pycs
add results for regulonDB
ignore .txts for regulonDB
add dl script for coryneRegNet
add parse script for coryneRegNet
add results for coryneRegNet
ignore .txt's for coryneregnet
ignore xmls in dbtbs
parse script and results for dbtbs