- Unit-tests for commit, derive, attest and verify added, with multiple
combinations of minimum age and commited age.
- Fixed crypto implementation (eddsa -> ecdsa)
- Using now standard functionality from GNUNET:
GNUNET_CRYPTO_ecdsa_{private,public}_key_derive
All tests pass (unit tests in util/ and 'make check' in testing).
- functions TALER_age_commitment_attest and TALER_age_commitment_verify
implemented.
- age restriction implementation moved into util/age_restriction.c