Replace txt2tortrk with csv2db to eliminate unnecessary processing steps.
Rename csv2db to less ambiguous name - nws_csv2db
New version for students .profile
Cleanup folder for lightning scripts.
Fix problems with dates on lightning_arrivals.
Simple update to lightning_arrivals for max distance default value.
Add tool to create wfdisc table containing data for stations experiencing close encounters to tornado tracks
Add tool to create wfdisc table containing data for stations experiencing close encounters with tornado tracks
Merge branch 'dev/tortrk'

Added tool to create wfdisc table containing data from stations experiencing close encounters with tornadoes.