Update bower to the latest version 🚀

[greenkeeper]

Version 1.8.1 of bower just got published.

Dependency	bower
Current Version	1.8.0
Type	devDependency

The version 1.8.1 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 bower.
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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Your Greenkeeper Bot 🌴

[greenkeeper]

Version 1.8.2 just got published.

Update to this version instead 🚀

[greenkeeper]

Version 1.8.3 just got published.

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[greenkeeper]

Version 1.8.4 just got published.

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Release Notes

v1.8.4

• Fixes release 1.8.3 by publishing with npm@3 instead of npm@5 (to include lib/node_modules)

[greenkeeper]

• The devDependency bower was updated from 1.8.0 to 1.8.6.

Update to this version instead 🚀

Release Notes for v1.8.6

Fix Zip Slip Vulnerability of decompress-zip package: https://snyk.io/research/zip-slip-vulnerability

Note: v1.8.5 has been unpublished because of missing files

[greenkeeper]

• The devDependency bower was updated from 1.8.0 to 1.8.7.

Update to this version instead 🚀

Release Notes for v1.8.7

Fixes side effect of fix from v1.8.6 that caused improper permissions for extracted folders

#2532