Email integration

[tso]

Not sure what this looks like. Depends on #17.

[tiffanynwyeung]

Need to investigate how to send emails through the website. We need to be able to:

• [mods/high priority] be able to send to a mailing list of all humans/zombies/players
• [mods/med priority] automatically send mission emails whenever they make a wagtail mission post
• [players/high priority] be able to send emails to all players if human, all zombies if zombie

Options:

• https://sendgrid.com/docs/Integrate/Frameworks/django.html offers 100 free emails per day post-free trial.
• use the current hvz gmail to be the sender email

[tiffanynwyeung]

Closed due to the fact that we have a working email integration for mods to contact players so far, but no Wagtail integration to send Wagtail posts (e.g. missions & announcements made on Wagtail) to players and that would probably be a separate issue for v2.0.