OpenSearch function updated

Attention OpenSearch users! If you've added IAT to your in-browser search engines, please delete it and re-add it again. I've finally updated the character encoding so foreign (å, ä, ö, etc.) characters will come through correctly. As for everyone else, why aren't you using it? Simply click the glowing drop-down thingy in the top-right of your browser and follow the instructions. Or simply click here for the JavaScript equivalent of the same.