added callopts param to tnrs function
updated to new roxygen2 ver, changed s3method to method in iucn_summary, added proper passing of curl options on to itis fxns
added verbose arg to man/getfullhierarchyfromtsn fxn
fixed broken tets for itis_lsid and col_downstream
put in missing verbose params in some fxns, fixed some tests, fixed unicode issue in eol_search param