#3 Different sizes for thumbnails

[Remo Laubacher]

As already discussed in this thread: http://sourceforge.net/forum/message.php?msg_id=5178857

It would be nice to have an option that lets us generate different sized thumbnails.

A sitewide setting where we could enter width/height would be great! The default thumbnails should probably not get touched by this, it should generate a second (or third) thumbnail..