Update noflo to version 0.5.19 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

noflo just published its new version 0.5.19, 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 noflo – 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 40 commits .

• 5e731b0 Set up component list before reading cache
• c12ba2d Bump
• ae2e5ba Make NoFlo component cache use relative paths
• 92c44c2 Rename the script
• 97280fd Add a noflo_cache_preheat tool for projects to use to improve start-up time
• eb921a6 Wait until write completes
• 2fcf8a3 Longer timeouts for older Node.js versions
• 2e70cd6 Tweak timeouts
• 04c2097 Tweak timeouts
• d0bcf4d Update read-installed
• cbde38a Support for scoped NPM packages
• 3ae7061 Merge pull request #326 from noflo/greenkeeper-babel-core-6.0.17
• 5ff97bb chore(package): update babel-core to version 6.0.17
• d3dd5f5 Test on Node.js 4.2 LTS
• e490bb6 Merge pull request #311 from noflo/greenkeeper-chai-3.4.0

There are 40 commits in total. See the full diff.

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