Tweak test to ensure classes prefixed with a backslash are handled appropriately.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Using the directory separator consistently through the autoloader.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Autoloader docblock tweaks.

Signed-off-by: Ben Corlett <bencorlett@me.com>