Fixes broken email confirmation for SQLAlchemy storage and webpy_app
Merge pull request #205 from w0rm/fix-email-confirmation-sqlalchemy-webpy

Fixes broken email confirmation for SQLAlchemy storage and webpy_app
v0.1.22
Mark dev version
Docs about flask error handling
Link backend docs in index
Add some missing dependencies for running `social.apps.django_app.default.tests`
Merge pull request #209 from mathspace/tests-require

Add some missing test dependencies for `social.apps.django_app.default.tests`
Remove bitdeli badge
Fixed Django < 1.4 support in context processors.

Prior to Django commit 60cf3f2f842b6e56132b8880c70acc87bd753c,
Django was using None as a sentinel value.
Make oauth_token retrieval optional. Refs #212
Merge pull request #211 from bmispelon/dj13-fix

Fixed Django < 1.4 support in context processors.
Added backend for Ubuntu (One).
Merge pull request #215 from schwuk/ubuntu-sso

Added backend for Ubuntu (One).