[libs] Bug in jderobotcomm_cpp

[aitormf]

when we try to connect cameraview or kobukiViewer to cameraserver, we obtain the following error:

Loading glade
[Info] loaded Ice.Config file: cameraview.cfg
Receiving Image from ICE interfaces
terminate called after throwing an instance of 'Ice::NoObjectFactoryException'
  what():  BasicStream.cpp:2667: Ice::NoObjectFactoryException:
protocol error: no suitable object factory found for `::jderobot::CameraDescription':
no object factory found and compact format prevents slicing (the sender should use the sliced format instead)
Aborted (core dumped)

with opencvdemo or basic_component this error doesn't occur (these tools don't use jderobotcomm to communications)