Default-Black and Bloody-Black updated for OpenCart 1.5.2 and 1.5.3

We’ve finally got around to updating another set of dark OpenCart themes, Default-Black and Bloody-Black, so they now work on OpenCart 1.5.2(.x) and 1.5.3(.x).

We’ve recreated them from scratch using a new structure that should allow us to more easily keep them updated in the future. Due to this new structure, they now depend on the “default” theme and require it to be left installed.