Gradle: include license in META-INF directory of jar files (#956)
Closes https://github.com/mozilla/rhino/issues/956
Update the Rhino Shell man page, distribution fixes
1) Ship the man page in Zip/Tar distributions.
2) Include the runtime and engine jars in the distributions.
3) Do not attempt to copy non-existing `build.properties` to distributions.
4) Compress Tar distribution file.
5) Update POM metadata descriptions.
6) Upgrade deprecated jar classifier configurations.
7) Make sure that Git handles the man page as text (`.gitattributes`).
Create reproducible jar files (#1120)
1) Remove Built-Date and Built-Time fields from MANIFEST files.
2) Do not depend on Built-Date in `ImplementationVersion` (reported by @gbrail).
3) Configure archive files to be reproducible.