Merge pull request #2834 from dominicjprice/master

Added sociaml-vcard for parsing/printing vCard 4.0 formatted data
+zarith.1.3

Closes #2829
+ppx_deriving_yojson.1.1
Merge pull request #2833 from pw374/master

add omd.1.1.0
Merge pull request #2840 from djs55/fix-nbd

nbd.1.0.2: fix uninstall
Merge pull request #2843 from mirage/zarith-1.3-2

+zarith.1.3
Merge pull request #2836 from whitequark/master

+ppx_deriving_yojson.1.1
Merge pull request #2830 from avsm/apt-cache-travis

Experimentally activate Apt caching for Travis downloads.
Updated sqlite3-ocaml
relax constraint on stog for stog-rdf: < 0.14
add stog-writing 0.13.0
add xmldiff 0.4.0
git pushMerge branch 'master' of
https://github.com/OCamlPro/opam-repository
add omd.1.1.1
Update to xapi-rrdd.0.9.8

Signed-off-by: David Scott <dave.scott@citrix.com>
Sync latest compiler pull requests
Add caravan 0.0.2
Merge pull request #2848 from bactrian/sync-prs-1412809202

Sync OCaml compiler PRs
Merge pull request #2839 from djs55/xapi-rrdd

Add the xapi statistics gathering daemon
Add xapi-squeezed.0.10.7

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