Latest red/black tree benchmark results on Java 7, with and without invokedynamic

	system ~/projects/jruby $ jruby -v bench/bench_red_black.rb
	jruby 1.7.0.dev (ruby-1.8.7-p352) (2011-12-18 43cbc21) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_29) [darwin-x86_64-java]
	2.748
	1.902
	1.87
	1.877
	1.873
	1.868
	1.864
	1.876
	1.884
	1.886

	system ~/projects/jruby $ pickjdk 5
	New JDK: 1.7.0u.jdk

	system ~/projects/jruby $ jruby -v -Xcompile.invokedynamic=false bench/bench_red_black.rb
	jruby 1.7.0.dev (ruby-1.8.7-p352) (2011-12-18 43cbc21) (OpenJDK 64-Bit Server VM 1.7.0-u2-b21) [darwin-amd64-java]
	2.367
	1.415
	1.378
	1.522
	1.416
	1.395
	1.405
	1.416
	1.415
	1.395

	system ~/projects/jruby $ jruby -v bench/bench_red_black.rb
	jruby 1.7.0.dev (ruby-1.8.7-p352) (2011-12-18 43cbc21) (OpenJDK 64-Bit Server VM 1.7.0-u2-b21) [darwin-amd64-java]
	3.225
	1.064
	0.792
	0.728
	1.333
	1.005
	0.677
	0.687
	0.673
	0.679

	system ~/projects/jruby $ rvm 1.9.3 do ruby bench/bench_red_black.rb
	3.426258
	3.415173
	3.475542
	3.497635
	3.43508
	3.491093
	3.413686
	3.542578
	3.437846
	3.626295