(nettle_mpz_random): New function, moved from...
* dsa-sign.c (nettle_mpz_random): ... here. Also changed argument
ordering and updated callers.

Rev: src/nettle/dsa-sign.c:1.4

addition to the private key. Use const.

Rev: src/nettle/dsa-sign.c:1.3

Rev: src/nettle/dsa-sign.c:1.2

Rev: src/nettle/dsa-sign.c:1.1
Rev: src/nettle/dsa-verify.c:1.1
Rev: src/nettle/dsa.c:1.1
Rev: src/nettle/dsa.h:1.1