create api subdomain and add routes
rename new to create
skip authentication in APIController
api json default format
add pairing columns to clients
rescue from RecordInvalid
use one spec file per API controller action
begin clients#revenue
FIX: don't email for new generated clients
add jbuilder gem
done api::clients#revenue
Merge branch 'add_jbuider' into create_api
Merge branch 'create_api'