* add NavHeader component
* use NavHeader in SplashPage component and application.hbs
* let download button take a block
* add RadialProgress component
* use RadialProgress in ShamirFlow component
* style up the RadialProgress component
* update ember-basic-dropdown, ember-basic-dropdown-hover
* rework operation token generation workflow
* directly depend on ember-maybe-in-element
* add popups
* add ability to disable entity and banner when entity is disabled
* re-add alias-popup template
* add accpetance tests for creating entities
* add more entity creation acceptance tests
* add delete to edit-form
* add more identity tests and associated selectors
* add onSuccess hook and use UnloadModel route mixins
* add ability to toggle entity disabling from the popover
* fix store list cache because unloadAll isn't synchronous
* fill out tests for identity items and aliases
* add ability to enable entity from the detail page
* toArray on the peekAll
* fix other tests/behavior that relied on a RecordArray
* adjust layout for disabled entity and label for disabling an entity on the edit form
* add item-details integration tests
* move disable field on the entity form
* use ghost buttons for delete in identity and policy edit forms
* adding computed macros for lazy capability fetching and using them in the identity models
* remove expanding behavior from engines list and add a configuration route
* use page header component, secret tab component for the template on the secret engine configuration route
* move abstraction to secret-list-header and remove secret-tabs
* add attrs to secret engine model and adjust mount controller code to support that
* fix top level nav so that we can use the back button properly
* fix tests
