* Fix COUNTBLANK.
	* Fix ATAN2(0,0).
	* Make AND, OR, and XOR ignore strings as claimed.
	* Fix TRIM for non-ASCII case with spaces at end.
	* Improve Excel compatibility of BIN2DEC, BIN2HEX, and
	  BIN2OCT.  [#323787]
	* Fix CONVERT crash.  [#323678]