added the last importformats
fixed some bugs, like the one mentioned in
https://github.com/fcatools/conexp-ng/commit/070eeac9c657a9fe9c5f87f07e9fa8731429c075
it seems the new filechooser opens always on top of the filesystem, I
will try to avoid this, but I think it's the weblaf
closes #112, closes #118, closes #104