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[bergie]

Midgard MVC code should live under the Midgard\MVC namespace and we should utilize a PHP standards autoloader:
http://groups.google.com/group/php-standards/web/psr-0-final-proposal

Since the entry point to Midgard MVC is midgardmvc_core::get_instance(), this rootlevel class should be kept available for backwards compatibility purposes. The target is to keep the component API unchanged.

The only other compatibility class we need is midgardmvc_core_request which extends Midgard\MVC\Request, as most component controllers have this as a typecasted parameter.