Fix unsigned/signed comparison warning

Change-Id: I2dd384e74e08ecdc026056e73a081e1ca96410a3
Reviewed-on: http://gerrit.aldebaran.lan:8080/15092
Reviewed-by: llec <llec@aldebaran-robotics.com>
Tested-by: llec <llec@aldebaran-robotics.com>
setCurrentThreadCPUAffinity: remove misleading comment

Change-Id: I6d05e055e63bd8a8e76560bdc1085996de55438d
Reviewed-on: http://gerrit.aldebaran.lan:8080/15096
Reviewed-by: llec <llec@aldebaran-robotics.com>
Reviewed-by: dmerejkowsky <dmerejkowsky@aldebaran-robotics.com>
Tested-by: dmerejkowsky <dmerejkowsky@aldebaran-robotics.com>
Fix a few warnings

Change-Id: I0bfc672fd859e11fb95b34aaf0a014b899ed8e65
Reviewed-on: http://gerrit.aldebaran.lan:8080/15118
Reviewed-by: llec <llec@aldebaran-robotics.com>
Tested-by: llec <llec@aldebaran-robotics.com>
eventloop: fix comments

Change-Id: Ie1e1451586f13dc51893eac3a769a91ba0fa165d
Reviewed-on: http://gerrit.aldebaran.lan:8080/15115
Reviewed-by: cgestes <gestes@aldebaran-robotics.com>
Tested-by: cgestes <gestes@aldebaran-robotics.com>