Add default Rails skeleton.
Add RVM ruby version and gemset files.
Ignore some IDE files.
Generate controllers for static pages -- index and about pages.
Add empty schema file (no migrations yet).
Use Unicorn as default server backend.
Cleaned up the Gemfile and added version specifiers.
Adjust static_pages controllers routes.

  * Set root path to static_pages#index.
  * Route static_pages#about to /about.