Automatically create user and skip setup page (#345)

* Added checks to docker-entrypoint

* Add init scripts feature

* Added backward compatibility

* Added auto user creation

* Updated README.md and env

* Use dbCheck for checking DB connection

env

@@ -12,6 +12,13 @@ DB_DATABASE=ninja
 DB_USERNAME=ninja
 DB_PASSWORD=ninja
 
+# Create initial user
+# Default to these values if empty
+# IN_USER_EMAIL=admin@example.com
+# IN_PASSWORD=changeme!
+IN_USER_EMAIL=
+IN_PASSWORD=
+
 # Mail options
 MAIL_MAILER=log
 MAIL_HOST=smtp.mailtrap.io