Modify unit tests for state to run on all state implementations

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>

Closes: #229
Approved by: rhatdan

libpod/sql_state.go

@@ -651,6 +651,8 @@ func (s *SQLState) SaveContainer(ctr *Container) error {
 		return errors.Wrapf(err, "error retrieving number of rows modified by update of container %s", ctr.ID())
 	}
 	if rows == 0 {
+		// Container was probably removed elsewhere
+		ctr.valid = false
 		return ErrNoSuchCtr
 	}