Prepare push to trunk. Now working on version 3.15.2.

R=danno@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11362112

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12863 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ChangeLog

+2012-11-06: Version 3.15.1
+
+        Put incremental code flushing behind a flag. (Chromium issue 159140)
+
+        Performance and stability improvements on all platforms.
+
+
 2012-10-31: Version 3.15.0
 
         Loosened aligned code target requirement on ARM (issue 2380)

src/version.cc

@@ -34,7 +34,7 @@
 // cannot be changed without changing the SCons build script.
 #define MAJOR_VERSION     3
 #define MINOR_VERSION     15
-#define BUILD_NUMBER      1
+#define BUILD_NUMBER      2
 #define PATCH_LEVEL       0
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)