* Use timezone aware datetime methods
* Use timezone aware date parse for GitHub issue tag
* Introduce a bit of chaos programming using Zonebie
Zonebie uses a random timezone to run tests, it's a really good way to see if the code is timezone dependent or not.
* Convert GitHub issue date as UTC
* Fix lint
* Split up mailers WIP
* Create spec for ScholarshipMailer
* Create spec for MembershipMailer
* Update to new mail classes
* Remove if/else development cases
* Fix lint
