Oops, forgot primes.h header and indiana.c.
Deal with non-rsa public key algorithms.

Even if it is presumably not mandatory to have a rsa algorithm for ask_crt()
callback, this commit *excludes* every non-rsa certificate from probing.
Everything is SO fucked up.

* implementing backups in pollard and williams;
* avoiding fucking memory leaks in the recovery of private rsa key
* fixing stupid string formatting bash
* asserting mathematic still works, specifically lehmer's theorem.