usage:
target/javaxdelta.sh [-d [port]] delta source.zip target.zip patch.zip
or
target/javaxdelta.sh [-d [port]] patch [-ps num] [-po num] patch.zip [target.zip [source.zip]]
-d start debugger and wait on defined port (4444 by default)
-ps num ingore num path elements on the source entry inside the patch
-po num ingore num path elements on the output entry inside the patch