Log Message:
Upgrade to 1.2.3.

Fixes:
	2012-10-24
	* Update configure.ac to avoid autoconf 2.68 warnings, by
	  (a) quoting the first AC_RUN_IFELSE argument, an
	      AC_LANG_PROGRAM(), with [ ], and
	  (b) providing an explicit "true" assumption for Berkeley DB
	      capabilities to avoid cross-compilation warnings.

	2012-10-22
	* Security bugfix for CVE-2012-5468 (bogofilter-SA-2012-01):
	  Fix a heap corruption in base64 decoder on invalid input.
	  Analysis and patch by Julius Plenz <plenz@cis.fu-berlin.de>.

	2011-01-02
	* Added bogofilter-faq-bg.html, a Bulgarian translation of the FAQ.
	  (thanks to Albert Ward)

	2010-10-29
	* Mark "Berkeley DB 5.1.19: (August 27, 2010)" supported.