typo in manpage for opam-install
Merge pull request #616 from tianyicui/master

A typo in manpage for opam-install
Merge branch 'master' of github.com:OCamlPro/opam
More rebust 'opam upate'
Update CHANGES
Typo
Update unit-tests to test ocaml-version constraints in command constraints and add some '+' just in case
Fix #604

This bug was appearing only when you have patched compilers installed as system compiler. This should not change anything for other use-cases.
Update CHANGES
Fix #602

More clever (?) instantiation of MANPAGE. If it is already set, keep the starting or trailing colons.
Fix 'make with-ocamlbuild'
Improve `opam init` message (thx to @amirmc)

Fix #588
Fix #592

Clean ~/.opam/log on each invocation. It's maybe a bit too often but it's better than never.
Update CHANGES
edit comment that specifies my home dir
Merge pull request #619 from amirmc/master

Edit the `opam init` comment that includes my home dir
Fix build for ocp-build + external packages
Include Uutf-0.9.2 + Jsonm-0.9.1 in a single OpamJson module
Update OpamProcess interface to have a structured info field
Add a --output-json command line option to output the result of an OPAM command as a structured output.

Currently, the JSON file only contains error reports.