query/README.md: postsWithDerby ->derbyPosts

postsWithDerby doesn't occur anywhere in the remainder of the file,
should probably be derbyPosts
handle | character for custom filter fn paths
Allow filters that take both filter function and arbitrary query building.
Merge branch 'master' of github.com:codeparty/racer
Remove un-used var
Add test for filter that uses both a filter fn and query helpers
Remove extraneous 2nd argument filterFn from MemoryQuery constructor
Add failing test for preserved filter fn unbundled properly in browser
Serialize a filter function properly on server, and deserialize on client.
With model.filter(fn), let fn take 3rd argument Model e.g., fn(v, k, model)
Bump racer-util
just log if a persistence handler can't be found
Add failing test for filter over query results integration test.
Run full stack integration tests over random ports, so we don't gen address in use errors.
Add new query method: .where('path.to.array.elemProperty').elemPropertyEquals(val)
Comment out failing test until we re-intro that feature
Fix filter on query result set integration test to use non-numeric ids
Better name for test
Remove console.log
Fix for broken filter on query results.