Added  (application/json) content type
Updated travis file
Structure for error codes
Error codes for token, subcompanies and company endpoints
Error codes for documents, users, providers, document-types
Removed trailing Error string
You're => you are, throttling limits, typos, special characters
Does not exists
For => on
Typos
Less you
Added 413 FileTooLarge
Add ForbiddenScheme error
Add TooManyArguments error
404 page
Merge pull request #23 from AnyFetch/error-codes

Error codes
Renamed identifier for hello world example
Bearer, no more token
First draft
Added identifier guide to guide list