Fix subcollections not having isCollection === true
1.3.0
Merge remote-tracking branch 'origin/fix-sorting'
1.4.0
update dependencies to latest
1.4.1
Add filtered_length property. Proposed fix for #6

When limit or offset is set and the newModels get sliced save the length so we know how many models we have _before_ slice.
Add filtered_length property description to readme
reset should also remove comparator.
allow negative offset and looping forward