thibaud-rohmer/PhotoShow — pull request #89 by D4nte (2011-12-28 15:28:47+00:00)
Title: Facebook improvement - like button

Hi,

I have added the facebook like button. I have also tweak the opengraph meta tags so when you like an album or add a link to an album on your facebook wall:
- You can select among the images which one you want to use as a thumbnail
- only public pictures are added in the meta tag
- a picture of a subalbum is chosen in case there is no picture is the given album

I also added the possibility for the admin to link his website to a facebook app. this is used by the like button (not mandatory to use it though).

TODO: use XHTML instead of iframe for the like button to allow more features such as the "send" feature.