There's a more proper way of stopping dhcpcd - asking it nicely.  Thanks, haxwithaxe!

Signed-off-by: The Doctor <drwho@virtadpt.net>
Using killall to terminate olsrd rather than a surgical strike seems to be more gentle,
strangely enough.

Signed-off-by: The Doctor <drwho@virtadpt.net>
The -x option to dhcpcd actually deconfigures the interface, as opposed to just killing the
daemon.

Signed-off-by: The Doctor <drwho@virtadpt.net>