Rearrange the file tree. It's actually, like, a tree now. Testing is a bit wobbly: you really do have to make the library before the tests will build. I don't like this, but the pieces of the library are all rather intertwined. One small piece of unintertwining: `strongprime.c' no longer includes `rand.h', which detaches the mathematical code from the symmetric-crypto build system disaster. Test files have been moved into `t/' directories as is now established practice. Also take the opportunity to eradicate the CVS `$Id...$' droppings.