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

benchmarks/README.txt

 V8 Benchmark Suite
 ==================
 
 This is the V8 benchmark suite: A collection of pure JavaScript
 benchmarks that we have used to tune V8. The licenses for the
 individual benchmarks are included in the JavaScript files.
 
 In addition to the benchmarks, the suite consists of the benchmark
 framework (base.js), which must be loaded before any of the individual
 benchmark files, and two benchmark runners: An HTML version (run.html)
@@ skipping 48 matching lines @@
 
 Removed duplicate line in random seed code, and changed the name of
 the Object.prototype.inherits function in the DeltaBlue benchmark to
 inheritsFrom to avoid name clashes when running in Chromium with
 extensions enabled.
 
 
 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.