Testing the implementations of this method requires partial mocking of the implementing class which makes it impossible to make them `final` (#3590).

Additionally, this API breaks the encapsulation of the driver layer: instead of exposing the fact of whether the connection will perform a query to detect the server version, the driver should just instantiate a platform corresponding to a connection.

The rationale behind introducing this method (#487) is really questionable:

> This is also required for drivers that cannot return the database server version without an additional query (performance reasons).

1. There's no evidence that an underlying driver that exposes the server version via its API doesn't make a request of any kind to the server.
2. For an application that works with any realistic database, a query like `SELECT VERSION()` wouldn't be a performance bottleneck.
3. Even if it was, it's always possible to specify the platform version upfront. Otherwise, the current logic of falling back to a default platform may cause undefined behavior of the application (we don't test the compatibility of the lowest level of the DBAL platform with all supported server versions). Remember, “If it doesn’t work, it doesn’t matter how fast it doesn’t work.”

The current driver has no option to allow the usage of SSL connections on mysql. I've used the same name params as mysql client.
An example of mysql client usage would be:

mysql --ssl-ca='path_to_ca.pem' --ssl-cert='path_to_client_cert.pem' --ssl-key='path_to_client_key.pem'

refactor secure connection as params

remove space

add space

refactor secure connection

rename method

rename method

docs: add ssl params to use in mysqli driver

rename test method

refactor method setSecureConnection

fix bug

add comment to method

remove string escaping

The PDO connection allow the instantiation of the connection even if the dbname
parameter isn't present. This change is there to make sure both behave the same way.

Fixes the warning emitted by mysqli when sqlstate is not set (yet?).
http://git.php.net/?p=php-src.git;a=blob;f=ext/mysqli/mysqli_prop.c;h=2d36336372b75922bd8fbf40c5c9054a5230c8a0;hb=HEAD#l36

Warning masks actual connection error.

Added flags support for mysqli::real_connect in Mysqli driver. This is necessary if you want to set connection options like compression or SSL encryption.