Combine: Fuel Management & Fuel

It appears that these two pages are pretty much the same concept, please merge.

(Personally I think that the "Fuel Management" is the more concise page title.)

Fuel Management

Fuel

Fuel is an object, not a concept. An object page should be made in place of it.

@Nadafinga: What Hailinel said. I've deleted the Fuel concept page. It had no text and only a few games on it anyway.