Use the latest Guava and Rhino versions.
Use Java 8 lambdas where possible and appropriate.
Ensure jar contains "resources" directory.

Also incorporate Guava and Rhino into the jar directly so we can deploy
just that one file (I'm open to other ideas, too). Plus put the service
entry using ant directly.
Make PlatformClasses.isPlatformClass O(log n).

It used to be O(n) on the number of rows in platform_names.txt, but
since we previously neglected to package platform_names.txt into our
jar, it didn't matter. It does now.