pgmanager: Add create_conn_listen() which should be used with wait_for_notify. Update wait_for_notify() to not use put_conn(). Add name to ConnectionInfo. Log queries before they are called. Log exceptions. Add notifyexample.
TESTS
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All test should work at least with Python 2.6, 2.7 and 3.2
How to test
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1. Copy tests.conf.example to tests.conf and modify it so it points to your test database.
2. Create test tables using tests.sql
3. Run individual tests.