Update primus to version 7.0.2 🚀

[greenkeeperio-bot]

🚨🔥⚠️ Action required: Switch to the new Greenkeeper now! 🚨🔥⚠️
This version of Greenkeper will be shutdown on May 31st.
With Integrations first-class bot support landed on GitHub and we’ve rewritten Greenkeeper to take full advantage of it. Simpler setup, fewer pull-requests, faster than ever.

---

Hello lovely humans,

primus just published its new version 7.0.2.

State	Update 🚀
Dependency	primus
New version	7.0.2
Type	dependency

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 primus.
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!

🌴

---

The new version differs by 250 commits .

• 4073860 [dist] 7.0.2
• 99de19d chore(package): update ws to version 3.0.0 (#589)
• 1ec7a64 Merge pull request #588 from primus/gh-585
• bb9dfe4 [minor] Add ability to modify the cache busting parameter
• fb5cf83 [minor] Avoid relying on the upgradeReq property
• 127c4ed chore(package): update mocha to version 3.4.1 (#586)
• b5ca35e [minor] Update TypeScript definitions (#582)
• 07bb096 chore(package): update browserchannel to version 2.1.0 (#581)
• 4b13b1b [fix] Don't start heartbeat in createSocket (#580)
• 509cf02 chore(package): update engine.io-client to version 3.1.0 (#578)
• 6561220 chore(package): update engine.io to version 3.1.0 (#577)
• 35a61fc [dist] 7.0.1
• f1aed15 [fix] Fix compatibility with uws 0.14.3
• 0712f6e chore(package): update mocha to version 3.3.0 (#575)
• d965175 chore(package): update ws to version 2.3.0 (#574)

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