- testUtil module is now empty, but kept for futur tests.
- NeoTestBase got a new getNextTID() method with a copy/paste from master's transactions manager to generate TIDs.
- testProtocol module no more import getNextTID() from neo.util module
- testTransactions test module is updated to test new features provides by transactions manager.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1456 71dcc9de-d417-0410-9af5-da40c76e7ee4