Mention necessary operation per http://lists.mediagoblin.org/pipermail/devel/2012-April/000173.html
mention dependencies, dbupdate, refer to docs
http://issues.mediagoblin.org/ticket/470
A template fix to show the EXIF DateTimeOriginal (as creation date). Added as a configurable option 'original_date_visible' (default false). Since the EXIF tag is a string with the date formatted as 'YYYY:MM:DD HH:MM:SS' the fix slices the string to give only the date and then replaces : by - to conform with the 'Added on' date.
Moved exif date transformation logic from template to image data model (as a function)
Documented the get_original_date method
Merge branch 'master' of git://gitorious.org/mediagoblin/mediagoblin

Conflicts:
	docs/source/siteadmin/media-types.rst
actual upgrade instructions
OAuth: Support refresh tokens, etc

Initially I was going to write a failing test for refresh tokens. Thus
this fix includes an orphaned 'expect_failure' method in test utils.

I ended up writing support for OAuth refresh tokens, as well as a lot of
cleanup (hopefully) in the OAuth plugin code.

**Rebase**: While waiting for this stuff to be merged, the testing
framework changed, it comes with batteries included regarding fails.
Removed legacy nosetest helper.

Also added a lot of backref=backref([...], cascade='all, delete-orphan')
Adds the timesince ability which fixes #394
Adds the unit tests and removes useless function we don't use
Adds the fuzzy timestamp to the admin panel too
Allows you to use your username or email to login
Add allow_comments configuration setting.
Do not render 'Add a comment' button if comments are disabled.
Do not allow comments to be posted when they are disabled.
Merge remote-tracking branch 'refs/remotes/tsyesika/394-fuzzy-timestamp'
Changing translations to say "amount of time ago", basically

Previously they were just "amount of time"... I think this fits a bit better.
Why not also display the times on when these media were created
Comment when/author link styling changes
Adding Jessica Tallon to AUTHORS!