Add samples for CloudSQL postgres

[bshaffer]

No description provided.

[bshaffer]

Looks good! Just a few changes needed.

[bshaffer]

We should actually keep this one as CLOUDSQL_CONNECTION_NAME, since this is a string specific to cloudsql, and only relates to mysql in the form of a socket.

[ryanmats]

done

[bshaffer]

The original is correct, I got confused. So this should be:

export MYSQL_DSN="mysql:host=127.0.0.1;port=3306;dbname=DATABASE"

[ryanmats]

done

[bshaffer]

I think it might be cleaner if we refactored this whole block to look like this:

// Create the PDO object for CloudSQL Postgres.
$user = getenv('POSTGRES_USER');
$password = getenv('POSTGRES_PASSWORD');
$dsn = getenv('POSTGRES_DSN');
$pdo = new PDO($user, $password, $dsn);

// Create the database if it doesn't exist
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$pdo->query('CREATE TABLE IF NOT EXISTS visits ' .
    '(time_stamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP, user_ip CHAR(64))');

// Add the PDO object to our Silex application.
$app['pdo'] = $pdo;

WDYT? This way we could also remove the setting of the pgsql.* variables in index.php and the tests.

[ryanmats]

done for Postgres + MySQL samples and re-tested everything

[bshaffer]

We can rename these back to just DeployTest and LocalTest because we split them into separate directories.

[ryanmats]

done

[bshaffer]

We can make these just DeployTest and LocalTest

[ryanmats]

done

[bshaffer]

Also looks like the build is failing because of trailing whitespace!

[bshaffer]

We don't actually run the DeployTest on travis, these are run from Jenkins. But that being said, we still want to rename these. nice job!