[release] update to version 1.1.1

[fantazio]

Ready for release : opam install . works as expected.
Upon approval of this PR, I'll publish the package on opam.

This release includes:

• Fix pp #48
• Fix report line comparison #51
• Avoid reporting on values from module types #52
• Strengthen report semantic for API "re-exports" #53
• Refactor cli internals #54
• Store cmi and cmt paths only in the config #56
• Add doc for exported values #63
• Fix docs's expected results and document limitations  #65
• Add doc for methods #68
• Add doc for fields and constructors #69
• [docs][exported_values] fix typos and links #70
• Convert CRLF to LF line ending #71
• Add doc for optional arguments always/never used #72
• Add doc for coding style #73
• Update the root md files #75
• Disable LexiFi's extension by default #76

It improves:

• the user documentation (#63, #65, #68, #69, #70, #72, and #73)
• strengthening some semantics (#48, #52, and #53)
• the test suite with examples from the documentation, and fixes in the expected results and the test engine (above PRs and #51)
• the configuration internals and the CLI (#54, #56, and #76)
• more general maintenance (#71 and #75)