AU Version should closely match JDK version

AU is now part of the install tree. But the version is currently needing to be updated manually for every fix. It is now currently 2.2.5.0. We should really make it pick up the versions from the JDK build versions. My suggestion is:

2.JDK_MINOR_VERSION.JDK_UPDATE_VERSION.BUILD_NUMBER

so for JDK 1.8.0-b54 something like:

2.8.00.54

and for JDK 1.8.0_04-b55, it would be:

2.8.04.55