Prepare push to trunk. Now working on version 3.13.7.

R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10928026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12464 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ChangeLog

+2012-09-06: Version 3.13.6
+
+        Added validity checking to API functions and calls.
+
+        Disabled accessor inlining (Chromium issue 134609).
+
+        Fixed bug in Math.min/max in optimized code (Chromium issue 145961).
+
+        Directly use %ObjectKeys in json stringify (Chromium issue 2312).
+
+        Fixed VS2005 build (issue 2313).
+
+        Activated fixed ES5 readonly semantics by default.
+
+        Added hardfp flag to the Makefile.
+
+        Performance and stability improvements on all platforms.
+
+
 2012-08-29: Version 3.13.5
 
         Release stack trace data after firing Error.stack accessor.

src/version.cc

@@ -34,7 +34,7 @@
 // cannot be changed without changing the SCons build script.
 #define MAJOR_VERSION     3
 #define MINOR_VERSION     13
-#define BUILD_NUMBER      6
+#define BUILD_NUMBER      7
 #define PATCH_LEVEL       0
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)