Update karma-coverage to version 0.5.5 🚀

[greenkeeperio-bot]

Hello 👋

🚀🚀🚀

karma-coverage just published its new version 0.5.5, 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 karma-coverage – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging 🌴

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The new version differs by 23 commits .

• aafab9d chore: release v0.5.5
• f385a5d chore: update contributors
• 39bbf3c Merge pull request #219 from nicojs/bug-property-browser-of-undefined
• 051cffd fix(in-memory-reporter): Fix bug in new InMemoryReport, now using null-checks
• fbca762 Merge pull request #217 from nicojs/in-memory-report-docs
• cba8d57 docs(config): Add in-memory reporter
• 879d3d1 chore: release v0.5.4
• 8ab62ef chore: update contributors
• 406df35 chore: Update devDependencies
• 4331546 Merge pull request #204 from cafesanu/bugfix-preprocessor-instrument-fail
• 019d6bb Merge pull request #216 from nicojs/coverage-completed-event
• dc03238 feat(in-memory-reporter) Added a new reporter in-memory which will raise an event rather than write to disk
• 75006b7 Merge pull request #213 from dwatling/upgrade-lodash
• 3c769d5 fix(preprocessor): Use _.includes instead of _.contains
• c56e4de fix(preprocessor): Call done with error message instead of populating instrumentedCode

There are 23 commits in total. See the full diff.

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