Allow `parseQueryString` to accept an optional object to override sort, order, skip, limit, queryParams. Added `fields` as a query param (comma separated) to allow mongo limited field response from queries.
Add and fix tests, also allow fields override in options
split tests into unit/integration
Fix bug where paging count was using page instead of actual count/length
Merge pull request #17 from airbrite/peter/query

Controller improvements to parsing query strings