started simplifying and fixing up low level itis functions #378
nearly done reworking low level itis fxns #378
merged changes
fixed test
fixes to get_tsn to allow passing in curl options, removed pass on of verbose to internal itis fxns
updated man file
updated man file
simplified internal structure of default children fxn, #379
changed classification db if else to switch to follow children eg
patch version bump
updated date