Add more checks on storage/operation.py :

* that nothing is put in queue when should not
* that there is no change with a 'pass' of 'return'
* that UUIDs matches with Identification packets
And some tests are grouped


git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@379 71dcc9de-d417-0410-9af5-da40c76e7ee4