Added version 1.8.2 of OCaml EFL.
Summary:
New version of the parsing libraries (needed by facebook software
soon to be released as open source). This version also works
with ocaml 3.12.1

Test plan:
put this package in my ~/testing repo
opam update testing
opam install pfff
=> it works, it installs pfff-xxx libraries
opam remove pfff
=> it works, it uninstalls pfff-xxx libraries
remove .cmt from install-findlib
Updated patches to match dose patches in opam's src_ext
Now handle all constraints in an upgrade request for the internal solver.
Release 20140313 of PPrint.
Updated build instructions, thanks to Jacques-Pascal Deplaix.
Aligned patch number with opam source, include new patches in opam file.
Reorder patches
Reorder patches
Merge pull request #1783 from rdicosmo/update-dose-patches

Update dose patches, and move them to a separate directory
Merge pull request #1784 from fpottier/master

Release 20140313 of PPrint.
Merge pull request #1779 from hcarty/master

Add udunits 0.2.0
Merge branch 'master' of git://github.com/axiles/opam-repository into axiles-master
Travis: follow HTTP redirects when downloading source patches
Merge pull request #1785 from mirage/axiles-master

version 1.8.2 of OCaml EFL with Travis fixes
be more bsd friendly
Merge pull request #1781 from aryx/master

pfff 0.27.1
dose: backport opam patches, remove camlp4 dep
Merge pull request #1788 from AltGr/dose-no-camlp4

Backport opam dose patches