v0.3.0

• Symlink the Intercity Backup directory (See intercity/intercity-next#42)
• FROM_EMAIL env var, used for all the emails send out by IC.
• Added SMTP configuration options
• Log sidekiq output to $app/log/sidekiq.log
• Sidekiq config has been moved to the intercity/intercity-next repo. (see intercity/intercity-next#63)
• Bumped the Docker image version in the launcher
• Add proper licensing (jvanbaarsen)
• Remove SECRET_KEY_BASE since it has been moved to intercity-next repo (jvanbaarsen)