Create language module, and the first draft the the extract method.
app/core/kuniri.rb: Add to Kuniri module
app/language/language.rb: Abstract class used as a base for laguages.
app/language/ruby_syntax.rb: Concrete class extended from Language, and that handling the ruby syntax.
app/util/html_logger.rb: Correct the class name for follow the Ruby patterns.
app/util/txt_logger.rb: Correct the class name for follow the Ruby patterns.
spec/core/kuniri_spec.rb: Update test for include the Kuniri module.
spec/language/ruby_support_test.rb: Fixed file used for test RubySyntax. DO NOT CHANGE IT!
spec/language/ruby_syntax_spec.rb: Test code for ruby test
spec/util/html_logger_spec.rb: Update test with the new name of the class.