Rename askari_java.jar -> askari-java-support.jar, add to git.

By tracking the jar in SCM, bundler users consuming us as a git source
can simply bundle install and be done, instead of having to run a
build in a involved dev environment.

Scrub timestamps and extra field from final jar to prevent spurious
SHA changes.
Merge pull request #61 from seomoz/phs/source-control-final-jar

Rename askari_java.jar -> askari-java-support.jar, add to git.