Update PHP-Scoper (box-project#255)

Update dependencies (box-project#254)

Update dependencies and fix the BC breaks introduced by PHP-Scoper.

Rework default values (box-project#251)

Add Pharaoh to Box (box-project#238)

Add [Pharaoh](https://github.com/paragonie/pharaoh) to provide a new `diff` command

Closes box-project#209

Harden the tests (box-project#237)

- Fix the coverage of some files (whitelist the files that should not be covered)
- Make `MapFile` return the unchanged path if no mapping is found for the given path: this allows to simplify some code
- Update the `ComposerOrchestrator` to not change the original `vendor/autoload.php` file if not necessary and make the changer prettier and more accurate (pure styling, no semantic change) when the file is changed
- Remove the config JSON imports support
- Fix some typos
- Add a lot of tests and rework some

Fail gracefully when the extension required for the compression algor…

…ithm is not loaded (box-project#205)

- Add a warning in the documentation and the logs of the `compile` command regarding the extension required to execute a PHAR once compressed
- Handle the compression in `Box` instead of using the leaked `Box#phar`
- Make `Box` countable
- A few minor refactoring bits

Closes box-project#186

Merge pull request box-project#176 from theofidry/bugfix/dependencies

Update dependencies

Fix the parallel processing in a renamed PHAR (box-project#160)

When the PHAR was renamed, the autoload files could no longer be found.

Closes box-project#152

Fix PHAR deployment

Revert unique prefix generation