added template for the kali linux distribution

Hi Michal,

if you mean the ```/etc/ssh/sshd_config``` file, yes it exists already. Just did it like most of the other templates, since the config entry does not exists already. 

```
./templates/CentOS-6.5-x86_64-minimal/base.sh:echo "UseDNS no" >> /etc/ssh/sshd_config
./templates/CentOS-7.0-1406-x86_64-netinstall/base.sh:echo "UseDNS no" >> /etc/ssh/sshd_config
./templates/Debian-6.0.9-amd64-netboot/base.sh:echo 'UseDNS no' >> /etc/ssh/sshd_config
./templates/Debian-7.6.0-i386-netboot/base.sh:echo 'UseDNS no' >> /etc/ssh/sshd_config
./templates/Fedora-19-i386/ks.cfg:echo 'UseDNS no' >> /etc/ssh/sshd_config
./templates/Fedora-20-x86_64/ks.cfg:echo 'UseDNS no' >> /etc/ssh/sshd_config
./templates/openSUSE-12.1-DVD+NET-x86_64/postinstall.sh:echo -e "UseDNS no\n" >> /etc/ssh/sshd_config
./templates/openSUSE-12.3-x86_64-NET_EN/postinstall.sh:UseDNS no
./templates/openSUSE-13.1/postinstall.sh:UseDNS no
```

But if you like i can add some validation statement, should i?

Greeting,
Sebastian