Add ability to run ActiveMQ as a service on x64 windows in 64bit JVM

We currently on provide a 32bit service wrapper for ActiveMQ on windows. Using the build of the wrapper.dll that's been added to Karaf (https://issues.apache.org/jira/browse/KARAF-1010) we can now supply a 64bit version as well as its built from the JSW 3.2.3 source.

See also:
http://maven.40175.n5.nabble.com/Looking-for-free-wrapper-windows-x86-64-exe-version-3-2-3-td4851520.html

Sonatype has published binaries on github: https://github.com/sonatype/jsw-binaries