j3dview v0.6.1

Changelog:

• When replacing textures it is now an toggleable option whether you want to keep the original texture header or the header of the texture you are replacing it with. In options.ini, keeporiginalheader = True for keeping the original header and keeporiginalheader = False for keeping the replacement texture's header. Default is True. The options file can be edited while the program is running and will take effect the next time you replace a texture if you need to change between the two options on a single model.