Improved DAF XF 105

Changelog for ver.1.2 (29.09.16):
-fixed various errors in definition files, materials and some textures;
-added full support of ETS2 ver. 1.25. Older versions not supported;
-added various new tuning parts;
-added new various types of some existing tuning parts;
-heavy mod structure optimization;
-added one more engine sound by Kriechbaum;
-improved interior and some exterior textures;
-and other changes.