Improve comments
Be more precise about the sexplib dependency
Better handling of bare/non-bare clone
Expose the backend kind
Expose Git_unix.Sync.IO
Simplify the compilation of tests
Fix typo in mirage tests
Update CHANGES
Merge branch 'master' of github.com:mirage/ocaml-git

Conflicts:
	CHANGES
	setup.ml
Bump version
Merge pull request #30 from samoht/master

Minor API improvements
Conduit is a dependency of git.unix only

See #25
Merge pull request #31 from samoht/master

Conduit is a dependency of git.unix only
removed unused dependencies in git
remove deprecated Array.create/String.create, add dependency on bytes
udpate opam file
move Git_unix to its directory, otherwise oasis is confused; put back some dependencies
small fixes in opam file