[Application Bootstrap] Initial Commit

  - Add Rails 4.0.2 application skeleton.
  - Setup Rspec support.
  - Setup Capybara support.
  - Setup Simplecov support.
  - Remove test folder.
  - Add home#index root page.
  - Add basic spec request for homepage.
[Tasks Management]

  - Add Task model with migrations.
  - Add complete CRUD for tasks.
  - Full spec coverage.
  - Setup decent_exposure support.
[Tasks Management] Refactoring
Merge branch 'tasks-management'
Merge branch 'master' of github.com:jmax/incubator