use namespaces, part 5 [0.12.0]

This version introduces multiple enhancements:

Core_Db changed to use namespaces

Details of additions/deletions below:
--------------------------------------------------------------

Modified:   /Lib/Core/Db/Helper/Connection/Pdo.php
            -- Added --
                usage of PDO, Loader, Exception and Core\Db\Helper\Connection namespace

Modified:   /Lib/Core/Db/Helper/Connection/Mysql.php
            -- Added --
                usage of mysqli, Loader and Core\Db\Helper\Connection namespace

Modified:   /Lib/Core/Db/Helper/Connection/ConnectionInterface.php
            -- Added --
                Core\Db\Helper\Connection namespace
            -- Updated --
                changed name from Core_Db_Helper_Connection_Interface to ConnectionInterface

Modified:   /Lib/Core/Db/Helper/Pdo/Mysql.php
            -- Added --
                usage of PDOStatement, Core\Db\Helper and Core\Db\Helper\Pdo namespace

Modified:   /Lib/Core/Db/Helper/HelperAbstract.php
            -- Added --
                usage of Loader, mysqli_result and Core\Db\Helper namespace
            -- Updated --
                changed name from Core_Db_Helper_Abstract to HelperAbstract

Modified:   /Lib/Core/Db/Helper/Mysql.php
            -- Added --
                usage of Loader, mysqli_result, Core\Db\Helper\Connection and Core\Db\Helper namespace
            -- Updated --
                CONNECTION_MYSQLI, changed class name to new
                CONNECTION_PDO, changed class name to new
                __construct, changed class name to new

Modified:   /Lib/Core/Db/Initialize.php
            -- Added --
                usage of Loader, Exception, Core\Db\Helper\Connection, Core\Blue\Model\Initialize\InitAbstract and Core\Db namespace

Modified:   /Lib/Core/Db/etc/config.ini
            -- Modified --
                changed version from 0.11.0 to 0.12.0