Update rest requirement from ^1.3.1 to ^2.0.0

[dependabot-preview]

Updates the requirements on rest to permit the latest version.

Release notes

Sourced from rest's releases.

v2.0.0

• MAJOR: Drop hard when.js dependency in favor of ES6 Promise API. See https://github.com/cujojs/when/blob/master/docs/es6-promise-shim.md to use when.js as an ES6 Promise polyfill.
• MAJOR: AMD modules are no longer supported. curl.js users can use the cjsm11 loader, see https://github.com/cujojs/curl#api-at-a-glance
• Moved path token param replacement from the clients into the rest/interceptor/params interceptor, which is also deprecated. The behavior will no longer be applied automatically in the client. Using the rest/interceptor/template interceptor is far more powerful and preferred.
• Fixed an issue preventing uri template exploded values from expanding correctly.
• Update tested environments:
  • Android 5.1, 4.4 and 4.3
  • Chrome latest
  • Edge latest
  • Firefox latest, 45 ESR, 38 ESR
  • Node 0.10, 4, 6
  • IE 11
  • iOS 8 and 9
  • Safari 8 and 9
• Removed old IE XDomainRequest client and xhr and xdr interceptors
• mime interceptor no longer sets Content-Type on requests without an entity

Commits

• 4bd359d Release v2.0.0
• d613afe Removed old IE XDomainRequest client and xhr and xdr interceptors
• 7709358 Drop AMD module support
• 4cf0771 Update tested browsers
• 29d77ee Fix jshint errors from adding self as global
• 72f5fc1 Allow to use XHR within Webworker scope
• 423dbb3 Correctly expand exploded template values
• 92bfd57 Remove automatic path token replacement from clients
• e88ba2d Encode URL query string as application/x-www-form-urlencoded
• 21b18ba Fix tests for iOS 7.1
• Additional commits viewable in compare view

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