Update CHANGES for GeneralizedTime info.

CHANGES

@@ -5,6 +5,13 @@
 
  Changes between 0.9.1c and 0.9.2
 
+  *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
+     functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
+     GeneralizedTime. ASN1_TIME is the proper type used in certificates et
+     al: it's just almost always a UTCTime. Note this patch adds new error
+     codes so do a "make errors" if there are problems.
+     [Steve Henson]
+
   *) Correct Linux 1 recognition in config.
      [Ulf Möller <ulf@fitug.de>]