New mscore.ttf font file generated using an older version of FontForge

Generating the mscore.ttf file using the newest version of FontForge breaks Musescore in Windows (see [this discussion](http://musescore.org/en/node/27326#comment-109116)). PR replaces the broken mscore.ttf with a TTF generated from a previous version of FontForge [which has been said to fix the issue](http://musescore.org/en/node/27326#comment-109116).