Updated the Swedish translation
Moved load_plugin_textdomain() for translation to the plugins_loaded action to make sure the widget is correctly translated.
Changed the name of the widget to "Rich text" and the description to a less "techy" text (thanks /u/actionscripted on Reddit http://tinyurl.com/lnm99yj) for a UI more similar to the core widgets
Tested in WP 3.6