Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- config/locales/en.yml
  Conflict caused by the glitch-soc-specific “flavour” string being too close
  to the newly introduced “identity_proofs” string. Just included both.

spec/fabricators/account_identity_proof_fabricator.rb

@@ -0,0 +1,8 @@
+Fabricator(:account_identity_proof) do
+  account
+  provider 'keybase'
+  provider_username { sequence(:provider_username) { |i| "#{Faker::Lorem.characters(15)}" } }
+  token { sequence(:token) { |i| "#{i}#{Faker::Crypto.sha1()*2}"[0..65] } }
+  verified false
+  live false
+end