build: bump bower from 1.8.2 to 1.8.4

[dependabot-preview]

Bumps bower from 1.8.2 to 1.8.4.

Release notes

Sourced from bower's releases.

v1.8.4

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

v1.8.3

• 451c60e Do not store resolutions if --save is not used, fixes #2344 (#2508)
• 50ee729 Allow to disable shorthand resolver (#2507)
• bb17839 Allow shallow cloning when source is a ssh protocol (#2506)
• 5a6ae54 Add support for Arrays in Environment Variable replacement (#2411)
• 74af42c Only replace last @ after (if any) last / with # (#2395)
• 💯Make tests work on Windows / Linux / OSX on node versions 0.10 / 0.12 / 4 / 6 / 8 / 9
• 💅Format source code with prettier

Changelog

Sourced from bower's changelog.

Changelog

Newer releases

Please see: https://github.com/bower/bower/releases

1.8.0 - 2016-11-07

• Download tar archives from GitHub when possible (#2263)
  • Change default shorthand resolver for github from git:// to https://
• Fix ssl handling by not setting GIT_SSL_NO_VERIFY=false (#2361)
• Allow for removing components with url instead of name (#2368)
• Show in warning message location of malformed bower.json (#2357)
• Improve handling of non-semver versions in git resolver (#2316)
• Fix handling of cached releases pluginResolverFactory (#2356)
• Allow to type the entire version when conflict occured (#2243)
• Allow owner/reponame shorthand for registering components (#2248)
• Allow single-char repo names and package names (#2249)
• Make bower version no longer honor version in bower.json (#2232)
• Add postinstall hook (#2252)
• Allow for @ instead of # for install and info commands (#2322)
• Upgrade all bundled modules

1.7.9 - 2016-04-05

• Show warnings for invalid bower.json fields
• Update bower-json
  • Less strict validation on package name (allow spaces, slashes, and "@")

1.7.8 - 2016-04-04

• Don't ask for git credentials in non-interactive session, fixes #956 #1009
• Prevent swallowing exceptions with programmatic api, fixes #2187
• Update graceful-fs to 4.x in all dependences, fixes Tracking: Revert #5102 when possible nodejs/node#5213
• Resolve pluggable resolvers using cwd and fallback to global modules, fixes #1919
• Upgrade handlebars to 4.0.5, closes #2195
• Replace all % chatacters in defined scripts, instead of only first one, fixes #2174
• Update opn package to fix issues with "bower open" command on Windows
• Update bower-config
  • Do not interpolate environment variables in script hooks, fixes bower/config#47
• Update bower-json
  • Validate package name more strictly and allow only latin letters, dots, dashes and underscores
• Add support for "save" and "save-exact" in .bowerrc, #2161

1.7.7 - 2016-01-27

Revert locations of all files while still packaging node_modules.

It's because people are depending on internals of bower, like
bower/lib/renderers/StandardRenderer. We want to preserve this
... (truncated)

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[gregor]

@dependabot-bot rebase