Merge pull request #336 from euanh/build-improvements

configure: Recognize 'RedHatEnterpriseServer' as an RPM-based distributi...
Merge pull request #337 from euanh/build-improvements

xenserver-install-wizard: Bump to 0.2.28
Merge pull request #338 from euanh/build-improvements

xenopsd: Update to 0.9.33, with HVM suspend/resume fixes
Merge pull request #339 from euanh/build-improvements

xenopsd: Back to 0.9.32 we go
xcp-sm: Add dependency on xen-runtime

xen-runtime provides /usr/sbin/xen-ringwatch, which is called by
the ringwatch cron job which this package installs.

Signed-off-by: Euan Harris <euan.harris@citrix.com>