[mapserver-dev] 6.0 backwards compatibility

[thomas bonfort]

> That said, Daniel needs to draw a line in the sand as far as non-critical
> changes so we can release this. Beta 4 was the last planned Beta, I thought,
> so we are working overtime at this point. But these changes should clean up
> the code and simplify the docs so that is a big plus on those fronts.

You're right, I should have brought this up earlier. This can wait for 7.0.