xapi-squeezed is now upstream

Signed-off-by: David Scott <dave.scott@citrix.com>
xapi-xenops is now upstream

Signed-off-by: David Scott <dave.scott@citrix.com>
xapi-networkd is now upstream

Signed-off-by: David Scott <dave.scott@citrix.com>
Merge pull request #60 from djs55/upstream

Remove more upstream package