[HOT] Japan imagery

[Xavier Barnada Rius]

> 2. Unfortunately the post-quake bing replaces the pre-quake. It would be
> nice if I was able to switch between them with some button in JOSM. Does
> that exist or is there some other way to do that? In the region I was
> working on yesterday you could zoom out a bit to see the pre-quake, but not
> were I'm working in now.

Yesterday if you put the max zoom in some regions you can see the pre-quake 
images.I think they are updating the wms