More updates for release 2.5.

Changelog

@@ -42,10 +42,6 @@ Usability:
   (e.g. "\%" or "\0") as an error instead of a warning.
 - Warn if floating-point literals overflow or underflow when converted
   to FP numbers.
-- Added missing check for static redefinition following a non-static
-  declaration.
-- Added missing check for redefinition of a typedef as an ordinary
-  identifier within the same scope.
 - In "-g -S" mode, annotate the generated .s file with comments
   containing the C source code.
 - Recognize and accept more of GCC's alternate keywords, e.g. __signed,
@@ -82,6 +78,11 @@ Bug fixing:
 - Issue #44: OSX assembler does not recognize ".global" directive.
 - Protect against redefinition of the __i64_xxx helper library functions.
 - Revised handling of nonstandard attributes in C type compatibility check.
+- Emit an error on "preprocessing numbers" that are invalid numerical literals.
+- Added missing check for static redefinition following a non-static
+  declaration.
+- Added missing check for redefinition of a typedef as an ordinary
+  identifier within the same scope.
 
 Miscellaneous:
 - When preprocessing with gcc or clang, use "-std=c99" mode to force