How to do m2m AND and OR filters?

[charleshan]

Similar to #595 but I'd like to use AND and OR filters.

e.g. /?tags=2,3,4&tags=5

This would translate to filter(tags__in=[2,3,4]).filter(tags__in=[5])

I got the first half using the NumberInFilter example from the docs but it looks like I'm only able to get the last query parameter.