various

cured multiple chat echo
prevent concurrent logins
non-active chan text in darker grey
deactivated failed login messages as client doesn't allow these to be displayed
fixed bug in nub chan description
broadcast chan events
fixed bug in #details that gave wrong gender description
improved timestamp datestamp format
removed gaps and formatting in #details command

Signed-off-by: themuntdregger <themuntdregger@gmail.com>