* add no-jquery rule and move event listeners to ember-concurrency tasks
* remove unnecessary onchange and handleKeyDown actions
* add element.closest polyfill and convert linked-block to use native dom apis
* update pretender, fetch, page-object, add optional-features, remove ember/jquery
* turn off jquery inclusion
* remove jQuery.isPlainObject usage
* violatedDirective isn't always formatted the same
* use fetch and the ember-fetch adapter mixin
* move to fetch and lowercase headers for pretender
* display non-ember-data errors
* use new async fn test style and lowercase headers in auth service test
* setContext is not necessary with the new style tests and ember-cli-page-object - it actually triggers jquery usage
* update ember-fetch, ember-cli-pretender
* wait for permissions check
* lowercase header name in auth test
* refactor transit tests to one test per key type
* simplify pollCluster helper
* stop flakey tests by prefering the native fetch
* avoid uncaught TransitionAborted error by navigating directly to unseal
* unset model on controller after unloading it because controllers are singletons
* update yarn.lock
* add ember-concurrency-test-waiter
* use withTestWaiter modifier in various parts of the application
* more withTestWaiter
* await instead of return for a few helpers
* update ember-cli-flash
* run ember generate ember-cli-flash
* remove withFlash helper
* fix typo and replication tests
* add new codemirror helpers
* adding json helpers to the secret pages
* mark the edit button / link as the edit element instead of the json toggle
* add acceptance tests for JSON editing
* add routes for control groups in tools, settings, access (#4718)
* UI control group - storage, request, authorization, and unwrapping (#4899)
* UI control groups config (#4927)
* remove header used for backwards compatibility in KV mounts, and use v1 paths for v1, v2 paths for v2
* make the model hook always run
* simplify adapter & serializer code for secrets
* update tests
* fix lease tests
* address review feedback
Matthew Irish