Add websockify as Kimchi dependency

websockify is present in all supported Linux distributions (RHEL6.5,
RHEL7, Fedora20, Ubuntu 14.04 and openSUSE 13.1) so instead of importing
its code into Kimchi source source structure we must add its package as
a Kimchi dependency and use it as is.

Signed-off-by: Aline Manera <alinefm@linux.vnet.ibm.com>
Delete imported websockify code

Now Kimchi depends on websockify package so the imported code can be
removed.

Signed-off-by: Aline Manera <alinefm@linux.vnet.ibm.com>