Resolve a number of oddities in the Java build. First, remove the weird

redirections between the build files, which didn't work completely.  Now
you just go to the directory of your choice and run make.  Clean up the
build files to have a logical order, fix the unnecessary rebuilds, prevent
the deleting targets from removing files they're not responsible for.  Ant
1.3 does not have a bug.  It deletes directories just fine if you follow
the documentation.