* Fix: a bug in `SQLBackend` introduced in version 0.0.4, which doesn't handle token re-generating properly * Add: database initializing instruction when using under Heroku in README
0.0.4
Feature update
* Add: `HerokuEnvironment` and corresponding example code * Add: HOWTO for heroku environment in README * Add: transparent mode (experimental) * Add: `SQLBackend` using `SQLAlchemy` * Mod: heroku example code to use `SQLBackend`
0.0.3
Feature update
* Mod: CGI mode example code * Mod: develop mode example code * Ref: `Environment` class is now standard WSGI middleware * Fix: several errors in the jinja template
0.0.2
Feature update
* Add: introduce the `Environment` class for platform-specific environment information extraction * Fix: wrong link in jinja templates * Add: `CGIEnvironment` for working with CGI mode
0.0.1
First working version
* Add: `FileBackend` to store OAuth tokens as files * Add: develop server example code