Fix public page

1. Feedback form not shown on public page
2. Image versions not shown on public page
3. Image availability (which clouds it exists for) not shown on public page
4. Image bookmarks not shown on public page
5. Image tag actions not shown/enabled (where appropriate) on public page
6. Change Image 'Launch' button to 'Login to Launch' on public site.  Will redirect the user to the login screen.  Unfortunately, I can't redirect them back to the page they were on yet...
6. Remove notification when favoriting an image (unless if fails).