tags as requested by miod and tedu

malloc() result does not need a cast.
ok miod

Stop pulling pqueue.h into ssl_locl.h since only a small part of libssl
actually needs it. Instead, just include it in the files where it is
actually necessary.

Also remove standard includes from pq

Stop pulling pqueue.h into ssl_locl.h since only a small part of libssl
actually needs it. Instead, just include it in the files where it is
actually necessary.

Also remove standard includes from pqueue.h so that they are not available
as a side effect. Just add the two includes that are needed to pqueue.c.

ok miod@

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No need to check for NULL before invoking free(); use calloc() when
applicable; further simplify pqueue_find().

From Dimitris Papastamos on tech@

Move the `pqueue' part of libcrypto, which is a glorified sorted linked list
of 64-bit data, and only used by DTLS, to libssl where it belongs.

Remove pqueue_print() which is a debugging interface a

Move the `pqueue' part of libcrypto, which is a glorified sorted linked list
of 64-bit data, and only used by DTLS, to libssl where it belongs.

Remove pqueue_print() which is a debugging interface and serves no useful
purpose, except for the regress test, which grows its own pqueue_print()
routine.

Bump libcrypto major and libssl minor.

WARNING: do not update your tree right now, more changes are coming, which
will ride the libcrypto major bump.

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