pt_BR Translations

Added pt_br translations.
Get rid of non-ASCII in README.rst
Merge pull request #492 from dimiro1/patch-1

pt_BR Translations
Django 1.6.x: ImproperlyConfigured: You're using the staticfiles app
without having set the STATIC_ROOT setting to a filesystem path.
Merge branch 'master' of http://github.com/pennersr/django-allauth
Added Amazon OAuth2 support.
Added Paypal OAuth2 support.
Improved style.
Fixes some Spanish language inconsistencies.
Added Amazon and Paypal documentation.
Token secret too limited for Amazon
TypeError when going directly to /accounts/social/signup/ (closes #488)
`VERIFIED_EMAIL` should not take `verified` into account (closes #487)
Default rendering of template threw a traceback. Added missing
template tag for url rendering.
Merge pull request #495 from aaronvanderlip/master

Default rendering of template threw a traceback. Added missing template tag for url rendering.