Issue #31 Defaults to event for country and edit

Events by default should not have a full country name and should be
uneditable.
Issue #23 Use clear with set to defaults

Just clearing an image gets rid of all important properties.
Combine clear with set to defaults so that the image is still functional
Issue #23 Add test case for image trimmer state

Image trimmer should not hold on to any state between images
Issue #23 Create a new deferred for each image

Don't use the already resolved deferred object from the last image.