Update validator to version 5.0.0 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

validator just published its new version 5.0.0, which is not covered by your current version range.

If this pull request passes your tests you can publish your software with the latest version of validator – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

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The new version differs by 109 commits .

• 76a0561 5.0.0
• 34779dc Update the README and changelog
• 396f2be Merge pull request #496 from forabi/modules
• a33b64b Fix README.md
• be9fb9c Rebase on 4.9.0
• bf16624 Fix ESLint config
• b1ff8bc Remove old ESLint config file
• af94fb7 Upgrade to ESLint 2, remove unnecessary deps
• f919358 Prefer template strings
• b96a953 Update the changelog
• e2ccc9f Merge pull request #503 from chriso/chriso/faster-base64-validation
• ebcca98 Condense the if blocks
• 1bd5b1f Check padding in the last block
• 38a5271 Don't use regex to validate base64
• f9c0cfb Add some more test vectors

There are 109 commits in total. See the full diff.

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