Update helmet to version 1.3.0 🚀

[greenkeeperio-bot]

Hello :wave:

:rocket::rocket::rocket:

helmet just published its new version 1.3.0, 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 helmet – otherwise use this branch to work on adaptions and fixes.

Happy fixing and merging :palm_tree:

---

The new version differs by 33 commits .

• aaf9130 1.3.0
• 28d63ea Prepare 1.3.0 release
• e6cf208 Update changelog for 1.2.0 release
• 393d6fc Test on Node 4, not necessarily 4.2
• 263de49 1.2.0
• 1ae8c86 Update dependencies to latest versions
• c753b1e Update helmet-csp to 1.1.0
• e2f4bd8 Bump frameguard to 1.1.0
• a3a9b7a Add npmignore file
• 837ba11 1.1.0
• 66b2846 Update changelog for 1.1.0 release
• b79090d Add dnsPrefetchControl middleware
• d7ed07a Update changelog for CSP readme fix
• b5e31f5 Add contributor code of conduct
• 4c53767 1.0.2

There are 33 commits in total. See the full diff.

---

This pull request was created by greenkeeper.io. It keeps your software, up to date, all the time.

_{Tired of seeing this sponsor message? Upgrade to the supporter plan! You'll also get your pull requests faster :zap:}

[watson-github-bot]

:tada: This PR is included in version 1.2.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: