- use embed from the standard library instead of packr
- upgrade to sprig v3
- upgrade gomail version
- use golang-migrate instead of sql-migrate to get embed support
- use statigz to deliver compressed static assets
This commit adds a new database table user_roles to prepare for the
introduction of a voter management system. All existing enabled voters
are added to the VOTER role.
- switch from goose to github.com/rubenv/sql-migrate
- move assets (static, templates, migrations) to boardvoting package
- add generated boardvoting/assets.go
- remove unused static files from static directory
- add package db with db migration configuration
