Changed path_to_enlightment.rb to include about_list_values.rb; moved all list_value (nil) tests to about_list_values.rb
Added about_ruby_2.rb to house the miscellaneous new / small features in 2.0
Added to about_ruby_2.rb (prepend, symbol array literals)
Changed class names in new files to make them fit appropriately
Merge branch 'stefan'