TUTORIAL REFERENCES:

-1- http://salayhin.wordpress.com/2012/10/19/test-driven-development-tdd-with-rails-3-and-rspec-part-1
-2- http://salayhin.wordpress.com/2012/10/20/test-driven-development-tdd-with-rails-3-and-rspec-part-2
-3- http://salayhin.wordpress.com/2012/10/20/test-driven-development-tdd-with-rails-3-and-rspec-part-3
-4- https://github.com/salayhin/rails-tasks