Update the V8 benchmark suite with the following fixes:...

benchmarks/README.txt

Index: benchmarks/README.txt
===================================================================
--- benchmarks/README.txt	(revision 4958)
+++ benchmarks/README.txt	(working copy)
@@ -66,6 +66,12 @@
 Changes from Version 5 to Version 6
 ===================================
 
-Removed dead code from the RayTrace benchmark and changed the Splay
-benchmark to avoid converting the same numeric key to a string over
-and over again.
+Removed dead code from the RayTrace benchmark and fixed a couple of
+typos in the DeltaBlue implementation. Changed the Splay benchmark to
+avoid converting the same numeric key to a string over and over again
+and to avoid inserting and removing the same element repeatedly thus
+increasing pressure on the memory subsystem.
+
+Furthermore, the benchmark runner was changed to run the benchmarks
+for at least a few times to stabilize the reported numbers on slower
+machines.