Normalizes nested JSON according to a schema
schemaAttribute option for arrayOf (https://github.com/gaearon/normalizr/issues/26, https://github.com/gaearon/normalizr/pull/27)idAttribute to be a function (https://github.com/gaearon/normalizr/pull/24)options argument to normalize() for a custom assignEntity function (#10, #14)lodash 3.0 instead of deprecated lodash-node