GitHub app registration URL in README

Added GitHub app registration URL to README for easier setup
Merge pull request #469 from asmaps/patch-1

GitHub app registration URL in README
UnicodeDecodeError in setup.py (closes #475)
Simplified Chinese translation updated
Corrected typos, sentence structure
Merge pull request #482 from lukaszbanasiak/master

Corrected typos, sentence structure
Merge pull request #481 from jresins/master

Simplified Chinese translation updated
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)