ParallelTests::RSpec::LoggerBase make :close method public

Incorrect method privileges for base logger. 
Default Rspec formatter like BaseTextFormatter have close as public method. In parallel_spec base logger override this method as protected. Thus in Ruby 2.1.2 loggers are not working throwing exception:

protected method `close' called for #<ParallelTests::RSpec::RuntimeLogger:0x00000010371828> (NoMethodError)

Other then this issue parallel spec works perfectly with Ruby 2.1.2 and Rspec 1.3.2 in our environment