Fixes #1485 - MvxObservableCollection RemoveRange raises Reset action

[prin53]

Fix for #1485

[kjeremy]

Is there a way to fix this without forcing a Reset?

[kjeremy]

So after staring at this I think Reset is the correct thing to do in this instance of RemoveRange. However there should really be an alternate RemoveRange that works on an actual range (ie contiguous) of elements.

Something like:

1. RemoveRange(int start, int count) which would remove an actual range from the collection.
2. Then we should take the current RemoveRange and rename it to something like RemoveItems because the Range name describes the shape of the input and not the operation.

[martijn00]

Thanks!