Prepare push to trunk. We are now working on version 2.2.16.

Review URL: http://codereview.chromium.org/2640007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4808 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

ChangeLog

+2010-06-07: Version 2.2.15
+
+        Add an API to control the disposal of external string resources.
+
+        Add missing initialization of a couple of variables which makes
+        some compilers complaint when compiling with -Werror.
+
+        Improve performance on all platforms.
+
+
 2010-06-02: Version 2.2.14
 
         Fixed a crash in code generated for String.charCodeAt.

src/version.cc

@@ -34,7 +34,7 @@
 // cannot be changed without changing the SCons build script.
 #define MAJOR_VERSION     2
 #define MINOR_VERSION     2
-#define BUILD_NUMBER      15
+#define BUILD_NUMBER      16
 #define PATCH_LEVEL       0
 #define CANDIDATE_VERSION true