Sub folders

[petervaradi]

This is almost perfect. I love this app. Nice job. There is one thing missing is the sub folder support. I usually drop a folder on the app and usually my folders has a lot of sub folders with various images. Currently the app only handling the images in the folder I drop and ignores the images in the sub folders.

I would really appreciate if you would consider adding this. Thank you!

[rangercyh]

#5