RFR: 8181825: Add tool and services information to module summary

[Jonathan Gibbons]

Updated patch incorporating review feedback.

* Mandy and Paul's suggestion to use "only" instead of "just".
* Removed entities for trademark symbols, as being against current 
guidelines.

-- Jon

JBS: https://bugs.openjdk.java.net/browse/JDK-8181825
Webrev: http://cr.openjdk.java.net/~jjg/8181825/webrev.01


On 06/08/2017 05:25 PM, Jonathan Gibbons wrote:
> Please review minor doc updates to langtools modules to add info
> about tools and services.
>
> In addition, a previously missing package-info is provided for
> com.sun.tools.javac.
>
> This is the langtools equivalent of JDK-8181639.
> https://bugs.openjdk.java.net/browse/JDK-8181639
> http://mail.openjdk.java.net/pipermail/core-libs-dev/2017-June/048132.html 
>
>
> JBS: https://bugs.openjdk.java.net/browse/JDK-8181825
> Webrev: http://cr.openjdk.java.net/~jjg/8181825/webrev.00
>
> -- Jon
>
>
>