Pass the session to QpidMessage constructor

The patch in I6e37780cc28737cfd56b6719ec8d9cebbc9bb278 added a new class
for the QpidMessage which was wrongly initialized when processing a
message.

Change-Id: Iaf525fc6ee9e56100c89863f9c651f20c148ecb5
Closes-Bug: 1282038