Add new get_layout() method to Views and use it everywhere we were hardcoding view_layout stuff.
This is _actually_ a long-winded way of doing a theming fix. IE6 needs to have a couple of percentage points of width shaved off the View column widths, otherwise you can end up with columns wrapping to a new line, which is not cool at all. So if we detect IE6, we now do this. Signed-off-by: Nigel McNie <email@example.com>