Add paperclip gem
Add logo attachment to organizations in db
Add logo to organization model
Add logo upload to admin
Add hosted logos to organization & project views
Validate organizaiton logo size and type
Adjust logo size in views
Add rake task to save existing organization image_urls to db as logos
Allow logos to be deleted in admin
Adjust views to only show existing logos, no default image
Allow image_url in views when logo not available
Print errors (twice!) when saving org image_urls to db as logos
update postgres pg gem
resolve gem merge conflicts