Do not send emails to leaders w/o email
Merge pull request #350 from CruGlobal/MH-988

Refactor organization menu
Merge pull request #349 from CruGlobal/MH-989

Do not send emails to leaders w/o email
Refactor phone number selection for text messaging
Add phone_number tests
Remove message preview and improve tests
Merge branch 'MH-982' into dev
Merge branch 'dev' of github.com:CruGlobal/missionhub into dev