Prepare to push version 1.2.12 to trunk.

Review URL: http://codereview.chromium.org/149192

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2360 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ChangeLog

+2009-07-06: Version 1.2.12
+
+        Added stack traces collection to Error objects accessible through
+        the e.stack property.
+
+        Changed RegExp parser to use a recursive data structure instead of
+        stack-based recursion.
+
+        Optimized Date object construction and string concatenation.
+
+        Improved performance of div, mod, and mul on ARM platforms.
+
+
 2009-07-02: Version 1.2.11
 
         Improved performance on IA-32 and ARM.

src/version.cc

@@ -34,7 +34,7 @@
 // cannot be changed without changing the SCons build script.
 #define MAJOR_VERSION     1
 #define MINOR_VERSION     2
-#define BUILD_NUMBER      12
+#define BUILD_NUMBER      13
 #define PATCH_LEVEL       0
 #define CANDIDATE_VERSION true