Translatable settings

While it's great that static and default variables are translatable, there was only one set of settings which should be in only one language. This is acceptable for a translated site, it's a real problem for a multilingual site. I did a lot of research and found a simple and flexible solution: use i18n API. I patched the module and thoroughly tested it and it works flawlessly on a i18n multilingual site and I see no reason why it wouldn't work if the base multilingual module was another as long as i18n is also installed. I included instructions in the patch that would help integrate the procedure on another version or even another module. I'm using singular while there's 2 of each because it's a copy of the same code, one for input and the other for output.