The app-package refactor means that the check for a Channel Member
object before allowing to delete the channel is now redundant, as the
check is already carried out by using HasPermissionToChannel() on the
user requesting it. As a result, System Admins can now delete channels
through the API even if they aren't members.
* Refactor and move session logic into app package
* Refactor email functions into the app package
* Refactor password update into app package
* Migrate user functions to app package
* Move team functions into app package
* Migrate channel functions into app package
* Pass SiteURL through to app functions
* Update based on feedback
* add docker container for inbucket
* Add way to get the emails using inbucket and add a test for reset password
* add config setting to send emails
* update TestEmailTest
update
* add another test and fix wrong assert
* update per review
fix lint
change senders email
* Revert config.json to default values for EmailSettings section
* update test
* add setup to make the test run
* Add app package and move logic over from api package
* Change app package functions to return errors
* Move non-api tests into app package
* Fix merge
