8182482: Module System spec updates

[Mandy Chung]

> On Jun 20, 2017, at 3:20 AM, Alan Bateman <Alan.Bateman at oracle.com> wrote:
> 
> The webrev with the proposed (docs only, no implementation) changes is here:
>  http://cr.openjdk.java.net/~alanb/8182482/webrev/index.html
> 
> The ServiceLoader diffs are hard to read. It might be easier to read the generated javadoc:
> http://cr.openjdk.java.net/~alanb/8182482/docs/java/util/ServiceLoader.html
> 

Looks good.

Mandy