Minor Token Api Param Casing Annoyance

[dauglyon]

a POST to /services/auth/tokens does not create the correct token type if the type param is capitalized (e.g. must send "service" not "Service", otherwise you get a Developer token), but a GET from /services/auth/tokens returns tokens with the type param capitalized ("Service").

[dauglyon]

Suggested fix is to accept both casings, for backwards compat.