Update xenopsd to 0.9.26

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #217 from djs55/update-xenopsd

Update xenopsd to 0.9.26
xapi: Update changelog for 1.9.27-2

Signed-off-by: Euan Harris <euan.harris@citrix.com>
Merge pull request #218 from euanh/build-improvements

xapi: Update changelog for 1.9.27-2