oauth 6.x-3.0-beta2

A collection of fixes and improvements. No big new features, but among other things a refactored DrupalOAuthClient that requires you to update your modules if you're using that class to consume API:s.

The methods getRequestToken(), getAuthorizationUrl(), getAccessToken(), get() in the DrupalOAuthClient class has new syntax - make sure to update your code.

Changes since 6.x-3.0-beta1:

• by voxpelli: Fixed non-used default access endpoint in client
• by voxpelli: Updated the OAuth library
• #749920: oauth_common_consumer_token varchar(32) -> varchar(50)
  by twom, voxpelli: Fixed character limits for tokens, secrets and keys
• #849832: Proper visibility (protected) for some DrupalOAuthClient properties/methods so it can be overriden
  by Jose Reyero, voxpelli: Fixed use of signatureMethod() in client
• by voxpelli: Added possibility to provide default signature method
• by voxpelli: Fixed the saving of a token when a provider reuses it
• by voxpelli: Added support for authentication realms
• by voxpelli: Changed token requests to use POST method as default
• by voxpelli: Added the possibility of defining endpoints as full URL:s
• by voxpelli: Added OAuth 1.0a support in the client
• by voxpelli: Added possibility to provide a default authentication realm
• #849832: Proper visibility (protected) for some DrupalOAuthClient properties/methods so it can be overriden
  by Jose Reyero: Fixed proper visibility for DrupalOAuthClient properties/methods
• #835824: OAuthSignatureMethod_HMAC_SHA1 autoload is missing
  by Schnitzel, voxpelli: Changed OAuthSignatureMethod_HMAC_SHA1 to OAuthSignatureMethod_HMAC
• by voxpelli: Changed the class for the plaintext signature method in autoload
• by voxpelli: Refactored some DrupalOAuthClient functions for consistency and flexibility
• #846744: Notice when deleting user
  by alex_b, voxpelli: Fixed notice when deleting user
• #846734: notice: Undefined variable: provider_consumer
  by alex_b: Fixed undefined variable: provider_consumer
• #773264: Wrong use of absolute url in destination, function _oauth_common_authorize()
  by toemaz: Fixed absolute url as destination in _oauth_common_authorize()
• #743638: Failed upgrade oauth_common_update_6100
  by toemaz, voxpelli: Fixed failed upgrade oauth_common_update_6100