Prepare push to trunk. Now working on version 3.23.13.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/88363002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18075 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ChangeLog

+2013-11-26: Version 3.23.12
+
+        Performance and stability improvements on all platforms.
+
+
 2013-11-25: Version 3.23.11
 
         Deprecate old versions of Isolate::SetData and GetData.

src/version.cc

@@ -34,7 +34,7 @@
 // system so their names cannot be changed without changing the scripts.
 #define MAJOR_VERSION     3
 #define MINOR_VERSION     23
-#define BUILD_NUMBER      12
+#define BUILD_NUMBER      13
 #define PATCH_LEVEL       0
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)