Xen: depend on xen-evtchn and xen-gnt rather than xen-event and xen-grant

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #86 from djs55/remove-xenctrl

Xen: depend on xen-evtchn and xen-gnt rather than xen-event and xen-gran...
Xen: update META to depend on xen-{evtchn,gnt}

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #87 from djs55/remove-xenctrl

Xen: update META to depend on xen-{evtchn,gnt}
sync CHANGES
Add a `type 'a io` to make it easier to include with the Mirage sigs.
Merge pull request #88 from avsm/master

Add a `type 'a io` to make it easier to include with the Mirage sigs.
Release 1.1.0
Merge pull request #89 from avsm/master

Release 1.1.0