convert tags to be backbone collection
add displayNames to some components
add pending image tag methods
fix image tag display
tags update optimistically correct

at least on instances
disable instance update success notification
fix link hover color
add image placeholder in front of instance resources
add underline to resources to make it more obvious they are clickable
instance details page shows gravatar
volume details page uses gravatars
show gravatar previews on project details page
create a modal that explains project delete conditions
improve project delete modal body
remove project success notifications
fix bug where instance suspends before user says yes
remove settings update notification
create method to return volumes attached to an instance
prevent user from deleting instance with volumes attached

ugly alert box for now. Placeholder for something better.