Initial working version

This first version supports publishing images from the top
camera on Nao. No configurability yet.

The nodelet code has been kept, but it is not
used/enabled at compilation yet.
Added support for dynamic reconfiguration of all Nao v4 camera params

Only reconfiguration of FPS, resolution, and source requires restart
of the driver.

Also, correctly unsubscribe/release from the video proxy.
Use the Nao TF frames + generate unique calibration files

Make sure we generate calibration files different for each resolution/camera
Support only RGB8 colorspace

If BGR is useful to someone, we can re-introduce it. For now, keep
things simple.
make the camera dynamically reconfigurable in Python
add support for 3d camera in Python
rename the package from nao_camera to nao_sensors
Sound node for Naoqi ROS bridge
more refactoring of nao stack
adjusted nao_driver package nodes to new name, added transitional "nao" stack
rename of nao_ctrl import (=> nao_driver), fixed stack.xml tags
rename of nao_ctrl import (=> nao_driver)
rename of nao_ctrl import (=> nao_driver)
Cleanup of nao_walker: got rid of a few deprecated scripts and MotionCommandBtn
nao_sensors update

added camOdom in nao_sensors
added output="screen" in nao_driver.launch
added test script for TF transforms
added cpp implementation
fix for previous commit
added send_cam_odom in nao_sensors
new parameter as workaround for joint angle bug in sim. NaoQI 1.12
new footstep control script for NaoQI 1.12
nao_footsteps for 1.12