Removed residue left by the template module

Signed-off-by: Samuli Seppänen <samuli@openvpn.net>
Mention that ksplice has been bastardized for non-Oracle operating systems

Signed-off-by: Samuli Seppänen <samuli@openvpn.net>
Stripped off disfunctional proxy support in ksplice::softwarerepo

Puppetlabs apt module does not support proxies if $key_source is used.

Signed-off-by: Samuli Seppänen <samuli@openvpn.net>