fixed copyright
corrected s check in _dsa_generate_dss_pq
indented files
Added _dsa_validate_dss_pq and _dsa_validate_dss_g, and other fixes in validation.
Split the generation of keypair from the generation of parameters.
use dsa_generate_dss_keypair when generating DSA keys.
exported more internal functions
Added new functions to obtain raw private key

gnutls_privkey_get_pk_ecc_raw: Added
gnutls_privkey_get_pk_dsa_raw: Added
gnutls_privkey_get_pk_rsa_raw: Added
corrected FIPS140 generation of DSA2 keys.
Added macros to allow specifying a subgroup for DSA.
ensure that _gnutls_pk_params_copy makes a full duplicate.
indented code
cleanups
increased seed length
cleanups
Fixes in the Shawe-Taylor prime generation routine.
do not impose limits to index
simplified _dsa_generate_dss_g()
corrected push/pull function setting
use RUSAGE_THREAD to obtain rusage stats to avoid becoming a bottleneck on processes with many threads.