+ get rid of some magic constants
+ revamped regression test script to count number of tests passed
+ made checkhash array in ops_seckey_t dynamic, rather than statically
allocated
+ made mdc array dynamic, and added a length field to mdc for future use
+ revamped usage message to match reality
+ made portable version again for the autoconfed package sources
+ add separate netpgpdigest.h file so that separate digest sizes can be
used without having to include "packet.h" in everything
6715e11a99