2015-01-15: Release version 3.15.4 * Fixed obsolete FSF address (bug #721542) * Fixed build problem (bug #711056) * Ported to GTK3 (bug #742827) * Added appstream XML (bug #742886) * Updated desktop file (bug #711056) * Miscapitalized menu items (bug #711056) * About dialog does not close (bug #336524) * Updated website (bug #381360) * Level completion detection fixed (bug #544762) * Removed heavy overlinking (bug #596094) * New and updated translations - af, courtesy of F Wolff - ar, courtesy of Djihed Afifi - be, courtesy of Ihar Hrachyshka - bg, courtesy of Alexander Shopov - bn, courtesy of Progga - ca, courtesy of Jordi Mas - cs, courtesy of Marek Černocký - da, courtesy of Joe Hansen - de, courtesy of Mario Blättermann - dz, courtesy of sonam pelden - el, courtesy of Athanasios Lefteris - en_GB, courtesy of Bruce Cowan - eo, courtesy of Kristjan SCHMIDT - es, courtesy of Jorge González - eu, courtesy of Iñaki Larrañaga Murgoitio - fr, courtesy of Claude Paroz - gl, courtesy of Fran Dieguez - he, courtesy of Yaron Shahrabani - hu, courtesy of Gabor Kelemen - id, courtesy of Andika Triwidada - it, courtesy of Paolo Sammicheli - lt, courtesy of Aurimas Černius - lv, courtesy of Rūdofls Mazurs - mk, courtesy of Arangel Angov - ms, courtesy of Hasbullah Bin Pit - oc, courtesy of Yannig Marchegay (Kokoyaya) - pl, courtesy of Piotr Drąg - pt_BR, courtesy of Gabriel F. Vilar - ro, courtesy of Nicolae Antonio - ru, courtesy of Yuri Myasoedov - sk, courtesy of Marcel Telka - sl, courtesy of Matej Urbančič - sr, courtesy of Мирослав Николић - sr@latin, courtesy of Miroslav Nikolić - sv, courtesy of Daniel Nylander - th, courtesy of Neutron Soutmun - tr, courtesy of Muhammet Kara - zh_CN, courtesy of Wang Li