Hi and thanks for your support!
I tried the master version you linked on a test installation, it seems to work! I’ve tested with WP 3.6.1 and 3.7, even inside a repeater field.
I only had a minor issue regarding php memory size, solved with php.ini, I don’t think it’s related to the plugin though.
I have another question now: will the master version get updates? I’m asking since I need to use it on a live installation.
Thank you again for your kind support!