[Therion] Inkscape import/export plugins

[Thomas Holder]

Hi Andrew,

thanks very much, of course this helps! So far this inkscape stuff is 
only tested with my biased way of creating therion input files.

About the background images:

1) there is no support for xvi :-(
2) my parser for this xth_me_image_insert line is still not perfect, but 
that can be fixed.

> See screen shot, the first 4 are in folders, the rest are just a long 
> list. My thinking was on the lines of on expedition without internet, if 
> all the files where in a folder, I could pass them on to someone else, 
> very unimportant

All *.inx files cannot be put in subfolders, *.py files could, but I 
think there is not much benefit for it. All my files start with th2*, so 
it's still quite easy to grab them and copy to another computer.

Cheers,
   Thomas