resolved by #703

Acceptance Criteria

[x] GIVEN I am a member in a group that has "email google group" feature ON
- WHEN I go to /groups/:id/dashboard
- THEN I should see a "Email Google Group" link
[x] GIVEN I am a member in a group that has "email google group" feature OFF
- WHEN I go to /groups/:id/dashboard
- THEN I should NOT see a "Email Google Groups" link
[x] GIVEN I am and Affinity sysadmin
- WHEN I go into a rails console for any environment
- THEN I should be able to inspect all feature toggles for a group (following docs)
- AND I should be able to independently inspect the state of any given feature
- AND I should be able to update any of these feature toggles to ON or OFF
[x] GIVEN I am an Affinity sysadmin
- WHEN I go into a rails console in any environment
- THEN I should be able to create a new feature toggle by running a rake task and supplying the name of the feature toggle (following docs)

Implementation Notes

We want API of feature toggle editing to look something like:

Group.find(1).feature_toggles.update(email_google_group: true)