- Adding `sendmail` feature to `apache` and `fpm` - Adding section `.examples/dockerfiles` - Adding section `.examples/dockerfiles/cron` to combine app & external cron-jobs - Adding section `.examples/dockerfiles/smtp` for further SMTP-settings
- Added develop images (apache, fpm, fpm-alpine) - Added stable images 3.6 (apache, fpm, fpm-alpine) - Added .travis.yml for testing