Review Request: JDK-8173303: Add module-subgraph images to main platform documentation

[Chris Hegarty]

> On 23 Mar 2017, at 23:55, Mandy Chung <mandy.chung at oracle.com> wrote:
> 
> Jon and I work on this patch as the first step to enable module
> graphs for inclusion in the javadoc.  It includes a @moduleGraph
> taglet, an updated GenGraphs tool, and also updates javadoc of 
> module-info.java to include @moduleGraph.  I also take the 
> opportunity to add simple javadoc to a few JDK modules preparing
> for JEP 299 that will generate module summary page for JDK modules.
> 
> Webrev at:
>  http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8173303/webrev.00/
> 
> Here shows some sample of the javadoc with module graph images:
>  http://cr.openjdk.java.net/~mchung/jdk9/module-graph-docs/overview-summary.html

This looks really nice, and quite straight forward with the use of a block
tag. I see Alan has given some comments on the module-level descriptions,
which I agree with.

-Chris.