Update dependencies from DependenCI

[drbyte]

There are new versions of your dependencies available!

Package	Current Version	New Version
phpunit/phpunit	4	6.2.1
squizlabs/php_codesniffer	2	3.0.0

These versions aren't covered by your current version range.

Without accepting this pull request your project will work just like it did before. There might be a bunch of new features, fixes and perf improvements that the maintainers worked on for you though.

I recommend you look into these changes and try to get onto the latest version.
If you have a test suite, a passing build is a strong indicator that you can take advantage of these changes by merging the proposed change into your project. Otherwise this branch is a great starting point for you to work on the update. Please take a look on the above section if you rely on the composer.lock file for your tests
If you don't have a test suite (you should), you can checkout to this branch (git checkout dependenci17848) and make sure everything is working.

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About tests that rely on the composer.lock file

DependenCI doesn't currently support auto-updating the composer.lock file. If your tests do composer install instead of composer update, you'll have to manually update the composer.lock file. You can run composer update nothing --lock to update your lockfile.

Want to disable checking for a specific dependency?

You can add an excluded section into your composer.json to exclude some dependencies from the analysis.

Your composer.json would look like this:

{
    "require": {
        "phpunit/phpunit": "^6.2.1",
        "phpmd/phpmd": "~2",
        "squizlabs/php_codesniffer": "^3.0.0",
        "satooshi/php-coveralls": "^1.0",
        "mikey179/vfsStream": "1.*",
        "phpdocumentor/phpdocumentor": "2.*",
        "michelf/php-markdown": "*"
    },
    "extra": {
        "dependenci": {
            "excluded": [
                "excluded/dependency"
            ]
        }
    }
}

Not sure how things should work exactly?

If you need help, have a cool idea for DependenCI or just want to say hi, drop us a mail at dependenci@miguelpiedrafita.com.

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[drbyte]

more work required beyond this, but this is needed anyway, so merging.