Pass all query parameters when redirecting
Correct all URLs to /oauth1

/oauth1 is the correct namespace, not /oauth
Register authorization callback on init
Check for required parameters correctly
Display errors correctly
Fetch request tokens, not consumers
Check request token expiration in low-level method

This moves the check from the higher level methods, and ensures that it's not
possible to forget the check.
Add method to authorize request tokens
Use strict comparison for authorized field
Fetch the correct consumer
Use the correct nonce string
Authorize request tokens using method
Ensure all filters/errors start with json_oauth1_
Don't attempt to focus non-existing elements
Correct inline documentation
Store consumer and token in object properties
Handle all authorization actions
Remove blank error body
Prefix authorization class correctly
Move authorization class to correct position