Added back in basic benchmark support. To run:

ruby benchmark/benchmark.rb --adapter mysql --num 1000
  ruby benchmark/benchmark.rb --adapter mysql --num 1000 --to-csv /tmp/results.csv
  ruby benchmark/benchmark.rb --adapter mysql --num 1000 --to-html /tmp/results.html

benchmarks/lib/output_to_csv.rb

@@ -0,0 +1,18 @@
+require 'fastercsv'
+
+module OutputToCSV
+  def self.output_results( filename, results )
+    FasterCSV.open( filename, 'w' ) do |csv|
+      # Iterate over each result set, which contains many results
+      results.each do |result_set|
+        columns, times = [], []
+        result_set.each do |result| 
+          columns << result.description
+          times << result.tms.real
+        end
+        csv << columns
+        csv << times
+      end
+    end
+  end
+end