Photo contest v1.5 changes: Added alt tag to photo contest thumbnails.
Photo contest v1.4 changes: Added Random and Hide reactions to the Options page.
Photo contest v1.3 changes: The photo contest block now shows a thumbnail of the submitted photo.
Photo contest v1.2 changes: Added code to prevent showing the Photo contest block unless a Photo contest end date is selected.
Photo contest v1.1 changes: Fixed issue with incompatibility with some other add-ons.
