In essence, yes, I'm happy for you to redistribute either or both compiled or source versions. As the control matures, I ought to work out a license; it would be something like the GNU License with the Classpath exception:
If you distribute source, I request that you include the readme and in any acknowledgement include a link to this website so that others can feed in comments and improvements, as well as benefitting from the queries answered on this board.
If anyone wants to help support the website financially, you can do so by buying a book through the Amazon links:
or a CD
It's a painless way to contribute because of course you get a book/CD or whatever :-)