chat/quassel: add rc.d script

[Robert Bagdan <kikadf.01%gmail.com@localhost>]

Hi,
1) I added an rc.d script to quasselcore, which is part of the quassel package.
I run quasselcore in a rpi2, where I tested the rc.d script, and it works fine.

2) When I built quassel for myself (on my host machine, and in an
empty chroot as well),
I found a configure error, as Qt5 has no SSL support. It is not true, so I tired
to fix CMakeLists.txt, tired the upstream fix as well:
https://github.com/quassel/quassel/commit/64faafba5401777e0aff165c405ca185065c22de
but without successful SSL support detection. Finally I added a patch, which
only sends warning, don't break the configure.

Interestingly, and I don't know how, but when I check the BulkTracker
I don't find
similar configure errors for quassel.

Changes in pkgsrc-wip/quassel, could you review?

-- 
Regards,
kikadf