add german locale
add german locale

ifeelgoods/apipie-rails,TwilightCoders/apipie-rails,komidore64/apipie-rails,lambda2/api-engine,edwardjewson/apipie-rails,johnnaegle/apipie-rails,Apipie/apipie-rails,komidore64/apipie-rails,edwardjewson/apipie-rails,Apipie/apipie-rails,lambda2/api-engine,ifeelgoods/apipie-rails,42School/api-engine,jcalvert/apipie-rails,TwilightCoders/apipie-rails,42School/api-engine,johnnaegle/apipie-rails,ifeelgoods/apipie-rails,TwilightCoders/apipie-rails,johnnaegle/apipie-rails,jcalvert/apipie-rails,komidore64/apipie-rails,jcalvert/apipie-rails,lambda2/api-engine,edwardjewson/apipie-rails,Apipie/apipie-rails,42School/api-engine