Update addons-linter to the latest version 🚀

[greenkeeper]

Version 0.15.15 of addons-linter just got published.

Dependency	addons-linter
Current Version	0.15.14
Type	dependency

The version 0.15.15 is not 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 of addons-linter.
Given that you have a decent 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.

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Commits

The new version differs by 12 commits .

• 27478bc Support async/await
• 123261d Merge pull request #1098 from asamuzaK/test-followup
• 2961036 Fix desc
• 7160f98 Merge pull request #1097 from mozilla/greenkeeper/eslint-3.13.1
• f4f76a1 Merge pull request #1096 from mozilla/greenkeeper/postcss-5.2.10
• 4bcfd28 Merge pull request #1090 from mozilla/greenkeeper/ajv-4.10.4
• 2d4f6cc Add parserOptions in eslint options (fix #1095)
• d2bdf82 fix(package): update postcss to version 5.2.10
• 14b7a70 fix(package): update eslint to version 3.13.1
• d1e3322 fix(package): update ajv to version 4.10.4
• a29b7b2 Merge pull request #1089 from mozilla/greenkeeper/mocha-multi-0.10.0
• b782b42 chore(package): update mocha-multi to version 0.10.0

See the full diff.

Not sure how things should work exactly?

There is a collection of frequently asked questions and of course you may always ask my humans.

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Your Greenkeeper Bot 🌴

[coveralls]

Coverage remained the same at 100.0% when pulling 9a9615d on greenkeeper/addons-linter-0.15.15 into 7d20a3c on master.