bind: security bump to version 9.9.5

Fixes CVE-2014-0591 (a crafted query against an NSEC3-signed zone can
crash BIND).
The 9.9.x series is the new ESV vesion, 9.6.x has been retired.
Also cleanup the initscript while at it.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>