Use database cache
Fixed exhibition get press release photo test

now checks to make sure it gets the related thumbnail image instead of the actual image
Don't overwrite photos on save when creating thumbs
added artist resume to admin
Changed unicorn timeout to match heroku timeout
Removd heroku collect static file because you should now set an ENV VAR instead of a file to disable collect static
Moved grapplelli inline with rest of admin installed apps in settings
Added admin subsection to requirements
Added wysiwyg for admin, fixed #126