refs. [d6c22df](d6c22df6d7)
- added icons for members and pages
- improved view site link visibility
- added view site to logo dropdown
- updated all navigation and logo menu icons
- rename 'team' to 'staff'
- lots of design refinement and update (colors, shadows)
no issue
- upgrade to latest `ember-source` and related dependencies including `ember-cli`
- upgrade to latest `ember-mocha` and modern ember testing setup
- https://github.com/emberjs/rfcs/blob/master/text/0268-acceptance-testing-refactor.md
- switch from using global acceptance test helpers and `native-dom-helpers` to using the new `ember-test-helpers` methods
- use [`chai-dom`](https://github.com/nathanboktae/chai-dom) assertions where in some places (still a lot of places in the tests that could use these)
- pin `ember-in-viewport` to 3.0.x to work around incompatibilities between different versions used in `ember-light-table`, `ember-infinity`, and `ember-sticky-element`
- incompatibilities manifested as "Invalid value used as weak map key" errors thrown when using `ember-light-table` (subscribers screen)
- pin `ember-power-datepicker` to unreleased version that contains a move from global acceptance test helpers to modern test helpers
no issue
- after un-nesting the built-in integration routes they no longer had the automatic redirect for non-admins
- added our non-admin redirect behaviour to all of the integration routes
- added our non-admin redirect behaviour to the Zapier route which didn't even have an authenticated redirect previously
- added acceptance test for Zapier route so verify the new behaviour
- wrapped the Zapier widget `<script>` tag in an "is testing" conditional so that the external script doesn't get loaded during tests
