* add namespace sidebar item

* depend on ember-inflector directly

* list-view and list-item components

* fill out components and render empty namespaces page

* list namespaces in access

* add menu contextual component to list item

* popup contextual component

* full crud for namespaces

* add namespaces service and picker component

* split application and vault.cluster templates and controllers, add namespace query param, add namespace-picker to vault.namespace template

* remove usage of href-to

* remove ember-href-to from deps

* add ember-responsive

* start styling the picker and link to appropriate namespaces, use ember-responsive to render picker in different places based on the breakpoint

* get query param working and save ns to authdata when authenticating, feed through ns in application adapter

* move to observer on the controller for setting state on the service

* set state in the beforeModel hook and clear the ember data model ca...