move WorkItem to file of its own, add inner class WorkItem.Store
create WorkItem even for non-slow ops
add build target "dist"; creates .zip with auto-install info
move orig tc-apis-1.7.jar to vendor/tc_java
Merge branch 'refactor_WorkItem'
move NtfsStreamsJ to example-plugins/NtfsStreamsJ; adjust build.bat file(s)
Merge branch 'master' of github.com:meisl/tc_java