Autominor bugfix

Hi Matthias,

Thanks for your merging my previous request #3 on Optional Minor Edit by Default.
While using the updated plugin, I found a javascript bug in the pop-up Media Manager caused by undefined JSINFO.plugin_enforcesummary.default_minoredit variable . It seems that the script.js is called even in the Media Manager window, however JSINFO is not passed to the window. This request is to prevent the javascript error. Additionally, updated new release version (date)  in plugin.info.txt file.

Best reguard,

Satoshi