pidgin/pidgin

Fix some broken urls and get rid of the old developer segfault message

Tweak some urls and get rid of the developer segfault message

Testing Done:
Build only

Reviewed at https://reviews.imfreedom.org/r/114/
nullclient = executable('nullclient', 'nullclient.c', 'defines.h',
c_args : ['-DSTANDALONE'],
dependencies : [libpurple_dep, glib])