fix endpoint referencing
handle response when not a collection
fix assocations to work with faraday
fix bug in finders
fix association endpoint handler, add belongs_to
update url handling for associations
update url handling, add individual urls
move callbacks
add has many association, fix fields
fix field lookup, collection handling for has_many
symbolize keys instead of stringify
use correct serialization class for collections
delete should use ID
fix make_request specs
fix persistence spec
fix finders spec