pidgin/pidgin

Fix an infinite loop in finch when disconnecting an account if an im is open

Testing Done:
Compiled

Reviewed at https://reviews.imfreedom.org/r/764/
libpurple/data/purple-url-handler.desktop.in
libpurple/protocols/null/nullprpl.c
pidgin/data/im.pidgin.Pidgin.desktop.in
sub/libpurple/data/purple-url-handler.desktop.in
sub/libpurple/protocols/null/nullprpl.c
sub/pidgin/data/im.pidgin.Pidgin.desktop.in