View filtering

Trello cards:
https://trello.com/c/nU941gPL/257-series-filter-by-status
https://trello.com/c/c1IqQVyF/413-filter-logs-info-warn-error-etc

What I did was create AsFilteredCollection which adds a 'shadowCollection' to client-side paged collections, and a queryParam for server-side paged collections. For Series vs Log respectively.