Log Message:
2.1.0		2007/08/10
	Update to new (draft version 06) Authentication-Results: header format.
	Do an SSP query for any message that didn't either succeed verification
		or cause some kind of internal error, not just those that
		failed to verify.
	Tighten up the logic used when checking header space allocation.
	Heavy cleanup of dkim_eoh() and dkim_eom() via patches from Chris
		Behrens of Concentric Network Corporation.
	LIBDKIM: Add more fine-grained state control enforcing the order in
		which the message processing functions are called.  There was
		previously a hole which would allow, for example, more headers
		to be submitted after a call to dkim_eoh() if a prescreen
		callback returned a "tryagain" result.
	LIBDKIM: Add dkim_sig_getidentity().
	LIBDKIM: Fix bug #SF1769270: Use the default query type to retrieve
		signing policy for unsigned messages.
	LIBDKIM: Fix bug #SF1769445: Return the correct policy result from
		dkim_get_policy_dns() rather than always returning an empty
		string.  Patch by Andy Fiddaman.
	LIBDKIM: Amend dkim_sig_getcanonlen() to include a parameter which
		receives the signature length limit, if any.
	LIBDKIM: Restore proper value to dkim_bodylen.  Problem noted by
		Jukka Salmi.
	LIBDKIM: Don't inexplicably clear sig_signalg.  Problem noted by
		Jukka Salmi.
	Feature request #SF1761475: Add "ClockDrift" configuration option
		for tolerating out-of-synch clocks.  Suggested by Kaspar Brand.
	Feature request #SF1761481: Add "SyslogSuccess" configuration option
		for logging successful operations rather than just errors
		or other informational messages.  Suggested by Kaspar Brand.
	Feature request #SF1769888: Amend dkim_policy() to be able to return
		the policy type retrieved from the sending domain.  Also
		add dkim_getpresult() and associated other code to get
		additional policy evaluation information.  Requested
		by Andy Fiddaman.