LOR admin: View response body over the full width of the screen without having to scroll to the right

[alextreme]

Possibly partially fixed by #13 however it's rather annoying to have to scroll to the right to view the full response body (the first thing I always do is open up a mousepad to copy/paste the body into).

It would be more userfriendly to wrap the body over multiple lines instead of showing the body on a single line. The body could also be shown in a read-only textfield widget, but in that case ensure the Django defaults are overridden because those the default textfields are rather small.