getParameters does not deal correctly with duplicate parameter names

[bartvde]

When OpenLayers.Util.getParameters is fed a url which contains something like:

?filter=a&address=foo&filter=b

the parameter filter will only contain the last value (b).

It should contain an array of the two values a and b.

[bartvde]

Util tests pass in FF 3.6 and Safari 5, please review.

[crschmidt]

I'm not convinced that this is an appropriate change to make without backwards compatibility concerns. For example, if someone does map.html?lat=42&lon=-71&lat=73&lon=17, this change causes the map to break, right? Although I can agree that this is a buggy choice to begin with, I think that it's probably something that we shouldn't break in a point release.

[bartvde]

Chris, this is a true concern. I'll move the target to 3.0.