[9] Review request: 8180040: Exclude jdk.packager module from unified JDK 9 docs

[Mandy Chung]

> On May 9, 2017, at 6:08 PM, Kevin Rushforth <kevin.rushforth at oracle.com> wrote:
> 
> Please review the following to exclude jdk.packager module from the JDK docs bundle:
> 
> https://bugs.openjdk.java.net/browse/JDK-8180040
> http://cr.openjdk.java.net/~kcr/8180040/webrev.00/
> 
> I also added a missing package description for the jdk.packager.services package (in the jdk.packager.services module), since the jdk.packager.services module will remain in the docs.

I suggest to convert package.html to package-info.java.  Also need copyright header.

build.properties change looks fine.

Mandy