* Allows RedirectUri to be a string separated list
Allow client_secret to be ommitted from requests if configured in the client settings
Merge branch 'redirectlist' of https://github.com/ericrwolfe/osin

# By Rangel Reale
# Via Rangel Reale
* 'redirectlist' of https://github.com/ericrwolfe/osin:
  * Allows RedirectUri to be a string separated list
Merge branch 'optional_client_secret'

* optional_client_secret:
  Allow client_secret to be ommitted from requests if configured in the client settings