xenopsd-xc: set the XCP_PATH to all the places the xen binaries may be

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
xcp-idl: update to 0.9.14 with XCP_PATH-searching ability

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Update wizard to 0.2.25

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
ocaml-xcp-idl: correct typo

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #233 from djs55/xenopsd-confg

xenopsd-xc starts ok on CentOS again