Remove references to defunct 'OS' module

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Depend on the new 'io-page' library

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Regenerate OASIS

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #15 from djs55/fixes

Remove 'OS' module, depend on 'io-page' (no -unix or -xen)
blkback needs Activations, from xenctrl.lwt

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #16 from djs55/fixes

blkback needs Activations, from xenctrl.lwt
Depend on ocamlfind xen-grant, xen-event rather than xenctrl

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
blkback: functorise over Activations

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Regenerate OASIS

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
blkfront: assume running in mirage-xen for now

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #17 from djs55/disaggregate

Update to new xen-event, xen-grant packages
Bump to 1.1.0 working version and sync CHANGES
Merge pull request #18 from avsm/master

Bump to 1.1.0 working version and sync CHANGES
Activations: use only the high-level ("after") interface

The low-level ("wait") interface can potentially lose events.

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #19 from djs55/activations-after

Activations: use only the high-level ("after") interface
sync CHANGES
Depend on xen-{evtchn,gnt}

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #20 from djs55/xen-evtchn-gnt

Depend on xen-{evtchn,gnt}
Remove the module S, it was polluting the namespace

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #21 from djs55/remove-s

Remove the module S, it was polluting the namespace