[Rails upgrade] Upgrade to Rails 3.2.18

  - Setup the application to skip controller assets and helpers
    generation.
  - Setup the application to skip controller specs generation.
  - Refactor Gemfile.
  - Add database.yml sample file.
  - Add new README file.
  - Add db/schema.rb file.
  - Add .ruby-version and .ruby-gemset files.
Merge pull request #200 from insignia4u/rails-upgrade

[Rails upgrade] Upgrade to Rails 3.2.18

  - Setup the application to skip controller assets and helpers
    generation.
  - Setup the application to skip controller specs generation.
  - Refactor Gemfile.
  - Add database.yml sample file.
  - Add new README file.
  - Add db/schema.rb file.
  - Add .ruby-version and .ruby-gemset files.
[Heroku Deploy] Enhancements

  - Setup Rails12Factor gem
  - Setup rack-timeout gem
Merge pull request #201 from insignia4u/heroku-deploy-enhancements

[Heroku Deploy] Enhancements
[Rspec Fixes]

  - Remove controller specs.
  - Clean up model specs.
  - Refactor spec_helper.
  - Remove mailer specs.
Merge pull request #202 from insignia4u/rspec-fixes

[Rspec Fixes]
[Homepage Enhancements]

  - Refactor HomeController.
  - Clean up views.
  - Full spec coverage.
Merge pull request #203 from insignia4u/homepage-enhancements

[Homepage Enhancements]
[Change gemfile.lock]
[Fix bug value items]
[Fix slider work position]
[Add responsive style for section work position]
[Change lang to en]
[Center horizontal the iso-text]
[Add class .font-primary to use in jobs titles]
[Change lang to text]
[Add margin to label required items]
[Change languaje text title]
[Add anchor to apply work offer]
[Change in db schema]