ABOUT

This is your project's root directory. Along with housing our application, it
also is the home to many of our tools' configuration files.

The following files reside in this folder:

    -> .gitignore (a git configuration file)
      The gitignore file specifies which files to not include in a git repository.
      Files included are often system files, temporary files, and other files which
      are specific to a machine.

        Gitignore
          - http://help.github.com/articles/ignoring-files


    -> .rspec (a rspec configuration file)
      RSpec is a commonly used testing tool for ruby.

        RSpec
          - http://rspec.info/


    -> .rvmrc (a rvm configuration file)
      A project rvmrc file (a rvmrc file in the root folder of a project directory)
      specifies a ruby environment.

      Ruby Version Manager, or RVM, helps install and manage multiple versions of
      ruby, different interpreters, and sets of gems.

        RVM
          - http://rvm.io/
        rvmrc files
          - http://rvm.io/workflow/rvmrc/#project


    -> Gemfile (a list of gems) && Gemfile.lock (a bundler-generated file)
      A Gemfile is a list of dependencies (gems) of your project. Use Bundler to
      install and manage rubygems.

      To install your gems, run `bundle install`.

      Gemfile.lock is a bundler-generated list of gems with versions. This is
      generated and versioned to keep a consistent environment across machines.
      It will be created and updated when you install gems with bundler.

        Bundler
          - http://gembundler.com/
        Gemfile
          - http://gembundler.com/v1.2/gemfile.html


    -> Rakefile (Rake build configuration file)
      Rake (Ruby Make) is a tool used to run ruby code.

        Rake
          - http://rake.rubyforge.org/


    -> config.ru
      A configuration file for rack servers. In this case, this file loads
      environment files in config/environment and our rails application.

For descriptions about each folder, look at the residing ABOUT doc.