Removing unecessary files
- app
  - views
    - welcome
      - mac.haml - not used anymore
      - windows.haml - not used anymore
- config
  - locales
    - en.yml - removing translations for old files
    - pt-BR.yml - removing translations for old files
- log - not used anymore
  - localeapp.yml - not used anymore
Merge branch 'remove-unnecessary-files' of git://github.com/kelvinst/railsinstaller.org into kelvinst-remove-unnecessary-files