Docker mix and match setup

Rewrite of the docker setup. Now uses fig to manage containers and container
linkage. The base is a block based mix and match, which will give you the
possibility to easily test all configurations.

docker/blocks/option_db_mysql/config

@@ -0,0 +1,6 @@
+[database]
+DB_TYPE = mysql
+HOST = ${DB_1_PORT_3306_TCP_ADDR}:${DB_1_PORT_3306_TCP_PORT}
+NAME = ${DB_1_ENV_MYSQL_DATABASE}
+USER = ${DB_1_ENV_MYSQL_USER}
+PASSWD = ${DB_1_ENV_MYSQL_PASSWORD}