Add public/system to .gitignore
Add 'paperclip' gem
Add functionality to add attachments to statuses
Add input field for adding an attachment to status
Add code to display attachment with the status
Refactor code to use an application helper on our views for the attachments
Add a document model to provide the functionality to add attachments to the users statuses
Implement functionality to remove attachment from status
Add functionality for adding avatars to users profiles
Add functionality to resize users avatars, add functionality to import avatars from gravatar
Add a rake task to import avatars from a user's gravatar