added package conf-mpfr
+tcpip.1.1.6
+mirage-fs-unix.1.1.1
Merge pull request #2377 from avsm/tcpip.1.1.6

+tcpip.1.1.6
mirage-fs-unix: restrict to ocaml >= 4.01.0
Merge pull request #2378 from dsheets/master

+mirage-fs-unix.1.1.1
sedlex 1.99.2
Merge pull request #2379 from alainfrisch/master

sedlex 1.99.2
added test exe source
test compilation and linking with MPFR and GMP
better desc.
Merge pull request #2380 from UnixJunkie/conf-mpfr-only

package to detect presence of the MPFR library
+libres3 v0.3

one of our deps requires >= 4.00.0, so require it here as well for now
Sync latest compiler pull requests
Merge pull request #2382 from bactrian/sync-prs-1406070001

Sync OCaml compiler PRs
Add ppx_deriving.
Merge pull request #2383 from whitequark/ppx_deriving

Add ppx_deriving
+mirage-net-xen.1.1.2
Merge pull request #2384 from avsm/mirage-net-xen-1.1.2

+mirage-net-xen.1.1.2
added