AWS S3 credentials and settings in wp-config file

[gdelacc]

Should be great set all S3 options in wp-config.php file like other plugins by security reasons and to avoid not admin access to config.

For example:

define( 'BACKWPUP_SETTINGS', serialize( array(
		'AWS-KEY-ID'          => '****************THVQ',
		'AWS-SECRET-KEY'  => '****************hgMK',
                'AWS-BUCKET' => 's3::bucket-name'
	) ) );