Serializers plan call 500 errors (#56)
Serializers plan call 500 errors (#56)

* Properly render json, headers, etc. on server errors

* Modularize Api Error Catcher, include in all API controllers

* Allow simplified trip request, set defaults for trip plan

* Fix trips controller bug, pending serializer spec

* Add basic en translations

camsys/oneclick-core,camsys/oneclick-core,camsys/oneclick-core,camsys/oneclick-core