Add API endpoints with a parameter to select the environment
Add XML-RPC introspection methods

Gandi XML-RPC server supports introspection methods which allow to get
a list of supported methods or informations about a specific method.
They have to be called without the api_key.
Remove domain.zone.version.new_version

'new' is a class method so the 'domain.zone.version.new' Gandi method
does not conflict with Ruby 'new' method and the 'new_version' alias is
not needed.
Undefine 'clone' method on ProxyCall class

Undefine 'clone' method so that the gandi method
'domain.zone.clone' can be used without its alias
'clone_zone'.
Add version.info API method
Keep backward compatibility for endpoints
Merge pull request #7 from gdott9/version_info

Add version.info API method
Merge pull request #8 from gdott9/introspection

Add XML-RPC introspection methods
Merge pull request #9 from gdott9/endpoints

Add API endpoints with a parameter to select the environment
Merge pull request #10 from gdott9/clone_and_new

Remove aliases for clone and new methods
Bump gem version
Fix README