Import Core from Fedora

From:
http://hans.math.upenn.edu/~edvardf/fedora-ocaml/SPECS/

Signed-off-by: David Scott <dave.scott@citrix.com>
Update to a more recent version

Signed-off-by: David Scott <dave.scott@citrix.com>
Fix the Core .specs

They now build on CentOS

Signed-off-by: David Scott <dave.scott@citrix.com>
Enable support for core/async through the stack

Signed-off-by: David Scott <dave.scott@citrix.com>
Update xcp-idl, xcp-rrdd, xenopsd

Signed-off-by: David Scott <dave.scott@citrix.com>
Core now builds on ubuntu

Mainly this involves:
  - running setup.ml -configure in the %build phase. It would generate
    the setup.data in the %prep phase and then lose it
  - fixing typos in the changelog
  - adding some missing builddepends

Signed-off-by: David Scott <dave.scott@citrix.com>
Remove libvirt as a requirement
xcp-rrdd: changelog and release must match

Signed-off-by: David Scott <dave.scott@citrix.com>
textutils: move 'setup.ml -configure' to the %build (from %prep)

Signed-off-by: David Scott <dave.scott@citrix.com>
Merge pull request #553 from BobBall/libvirt_fix

Remove libvirt as a requirement
Move more 'setup.ml -configure' to the %build phase (from %prep)

Signed-off-by: David Scott <dave.scott@citrix.com>
Remove spurious 'Require'

Signed-off-by: David Scott <dave.scott@citrix.com>
Merge pull request #550 from djs55/core-async

Add core/async and switch it on
Add ocaml-dyntype 0.9.0

Signed-off-by: David Scott <dave.scott@citrix.com>
Add ocaml-jsonm, a dependency of ocaml-ezjsonm

Signed-off-by: David Scott <dave.scott@citrix.com>
Add ocaml-ezjsonm, a dependency of ocaml-cow

Signed-off-by: David Scott <dave.scott@citrix.com>
Add ocaml-omd, a dependency of ocaml-cow

Signed-off-by: David Scott <dave.scott@citrix.com>
Add ocaml-ulex, a dependency of ocaml-cow

Signed-off-by: David Scott <dave.scott@citrix.com>
Add ocaml-cow, a dependency of xapi-storage

Signed-off-by: David Scott <dave.scott@citrix.com>
ocaml-cow-devel needs ocaml-dyntype-devel

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