* Manager now index per node type and node state
* Use set() instead of list() to ensure node unicity
* Rename 'server' attribute to 'address' for consistency
* Remove 'filter' parameter from clear(), because it's never used.
* Update tests 


git-svn-id: https://svn.erp5.org/repos/neo/trunk@1317 71dcc9de-d417-0410-9af5-da40c76e7ee4