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* Added a lookup_email parameter to fedora.client.AccountSystem.gravatar_url()
to allow generating gravaar urls without looking up email addresses in fas.
* Fixed a bug in fedora.tg.utils.tg_absolute_url() where it was still appending
the csrf_token.
* Add an auth adapter for flask web apps to authenticate to FAS
* New minimum version of python: requires python-2.5 or higher
* Fix localization of login templates (laxathom)
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