- Split completely expected packet handlers from asynchronous event handlers
- Remove NEOStorageConnectionFailure exception and replace it by a more general "ConnectionClosed" exception, purely internal to client app.
- Modify waitMessage to redirect to a handler based on remote peer type
- Fix multiple code paths taken when master doesn't accept connections (or closes them) while trying to conenct to it.
Also:
- remove unused imports found by pyflakes


git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@773 71dcc9de-d417-0410-9af5-da40c76e7ee4