Update download to version 5.0.0 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

download 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 download – 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 30 commits (ahead by 30, behind by 2).

• 0dfcb7c 5.0.0
• 7f8ab78 Bumpdecompress``
• 49d6bcb Promisify and support Node.js >=4 (#103)
• 5f1ff80 Bump nock
• b208656 Update for the latest AVA
• 390ca84 4.4.3
• 5d93aac Remove unnecessary .slice
• df5a44d 4.4.2
• 4eda801 Pass a protocol string tocawwithout trailing colon
• 2a59e5b Bump ava and nock
• bac7dd9 4.4.1
• eb40273 Restore npm version of gulp-decompress
• e794601 4.4.0
• d67ce85 Bump got from v4 to v5
• bf8947a 4.3.1

There are 30 commits in total. See the full diff.

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