- (djm) Ignore fix & patchlevel in OpenSSL version check. Patch from

 - (djm) Ignore fix & patchlevel in OpenSSL version check. Patch from
   solar@openwall.com
 - (djm) Rework entropy code. If the OpenSSL PRNG is has not been
   internally seeded, execute a subprogram "ssh-rand-helper" to obtain
   some entropy for us. Rewrite the old in-process entropy collecter as
   an example ssh-rand-helper.
 - (djm) Always perform ssh_prng_cmds path lookups in configure, even if
   we don't end up using ssh_prng_cmds (so we always get a valid file)