By Tim Henderson (tim.tadh@gmail.com)
Nothing yet, but you can build all the submodules with buildr
You can download a prebuilt jar for the current release.
Before you get started you will need Java 7 and Apache Buildr 1.4.15. Once you have those it should be as straight forward as:
git clone git@github.com:timtadh/jpdg.git
cd jpdg
git submodule init
git submodule update
buildr soot:package
buildr run
Soot should be rebuilt any time the submodules change.