URL parameter for upper-left location

[AFFogarty]

Right now, you can specify x and y location by ?x=123&y=456 in the page URL and Diva will automatically open to that location. x and y are calculated as offsets from the centre of the page.

It would be nice if you could give ?ulx=123&uly=456 parameters to open at (123,456) from the top-left of the page.

[ahwitz]

For what it's worth https://github.com/DDMAL/diva.js/blob/master/source/js/diva.js#L2527 takes "top" and "left" as parameters. Should be relatively easy to hook something of that pattern into setState.