Update webpack to version 2.5.0 🚀

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Hello lovely humans,

webpack just published its new version 2.5.0.

State	Update 🚀
Dependency	webpack
New version	2.5.0
Type	devDependency

This version 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 webpack.
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.

Do you have any ideas how I could improve these pull requests? Did I report anything you think isn’t right?
Are you unsure about how things are supposed to work?

There is a collection of frequently asked questions and while I’m just a bot, there is a group of people who are happy to teach me new things. Let them know.

Good luck with your project ✨

You rock!

🌴

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GitHub Release

Bugfixes:

• add hashSalt to schema
• webpack's source code no longer contains sourceMappingURL, which caused issues with some tools
• Added missing semicolon in dll-imported modules
• DllPlugin manifest is smaller (not pretty printed)
• CommonsChunkPlugin in async mode doesn't extract from initial chunks

Features:

• allow placeholders in the BannerPlugin
• add option to disable the module trace in stats

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The new version differs by 2402 commits (ahead by 2402, behind by 48).

• bf3652b 2.5.0
• cd1cd29 Merge pull request #4815 from webpack/bugfix/extract-async-initial
• b45588b CommonsChunkPlugin in async mode doesn't select initial chunks
• 8bab88c Merge pull request #4814 from webpack/test/move-entry
• a244879 add testcase for moving entry modules into the commons chunk
• 85dc98f Merge pull request #4813 from JLHwung/perf/date-now
• 6afc397 perf: use Date.now() instead of new Date().getTime()
• 94d0641 perf: use Date.now() instead of +new Date()
• c91ba49 Merge pull request #4791 from deificx/master
• 94ba75f Merge pull request #4794 from ndresx/disable-manifest-json-pretty-print
• 84ea1ff added error to stats.moduleTrace test name to trigger test cases corretly
• 8ad4386 test cases for stats.moduleTrace option
• 958156a moduleTrace added to webpackOptionsSchema.json
• de87f93 Disable manifest.json pretty print
• 4131013 rename stats.stackTrace to stats.moduleTrace

There are 250 commits in total. See the full diff.