Bugfixes for larry skin and slovenian language

I have added slovenian language pack and fixed the issue that I discovered on small screens: on 1024x768 resolution it was impossible to submit the form because the button was hidden in an invisible part of the screen and scroll disabled.
I updated the default skin so that it is more integrated into larry skin and works as well as looks the same as the settings for other plugins as well as core settings.
Thanks for your contribution.
Regards,
Gregor