[config] Rename and document hostname_is_ip method.
[config] Rename and document hostname_is_ip method.

DarKnight24/owtf,owtf/owtf,sharad1126/owtf,DarKnight24/owtf,owtf/owtf,DePierre/owtf,DarKnight24/owtf,sharad1126/owtf,sharad1126/owtf,DePierre/owtf,DePierre/owtf,DarKnight--/owtf,DarKnight24/owtf,sharad1126/owtf,DePierre/owtf,owtf/owtf,DarKnight--/owtf,DarKnight--/owtf,owtf/owtf,owtf/owtf,DarKnight--/owtf