authors are incorrectly character-encoded

some authors contain UTF-8 characters which have been double-encoded, resulting in mangled author strings for multiple name sources:

"Abida boileausiana Charpentier" -> Name_matched_author = "DvoÅ™ák" (Tropicos)
"Poa annua var. eriolepis" -> Name_matched_author = "̉ۡ.Desv." (TPL)

this applies to both the live and dev TNRS servers