API Components now use dependencies injection
API Use authentication_policy config instead

authentication_policy static is now used for authentication policy
config
API NEW Basic (De)Serializer + renamed Default to EmberData

Basic (De)Serializer converts DataObject with minimal/none formatting.
EmberData (De)Serializer formats output to use with EmberData.js
FIX Check if model class exist

An empty response is sent back if the requested model class doesn't
exist
FIX Use JSON_NUMERIC_CHECK

Use own json_encode method with JSON_NUMERIC_CHECK fixing integre and
booleans issue