Update "CipherList" to not enable SSLv3 by default

Idea, initial patch, and testing by Christoph Biedl
<ngircd.anoy@manchmal.in-ulm.de>
INSTALL: List the changed SSL CipherList default value.
Merge branch 'CipherListNoSSL3'

* CipherListNoSSL3:
  INSTALL: List the changed SSL CipherList default value.
  Update "CipherList" to not enable SSLv3 by default