Version is now 0.8.16-rc1

git-svn-id: http://svn.irssi.org/repos/irssi@5225 dbcabf3a-b0e7-0310-adc4-f8d773084564
Link DANE configure check with libpthread

git-svn-id: http://svn.irssi.org/repos/irssi@5226 dbcabf3a-b0e7-0310-adc4-f8d773084564