Added LDAP support using the FR3DLdapBundle and Added a port number to the MySQL connection

Added LDAP support using the FR3DLdapBundle, the FR3DLdapBundle is capable of working together with the FOSUserBundle. If LDAP login fails it does a fallback, new user creation still possible.

Added dbal config parameter for setting the port number.

Extended the parameters.yml.dist as well to have both changes.