Cleanup: removed scan scripts / callbacks from nao_driver.

Should end up in a different package using a combination of
pose_manager and nao_controller
deleted further obsolete pose scripts (replaced by pose_manager)
Move nao_driver's node to 'nodes' directory (as per rep-008).

Beware! Move has broken some nodes's imports. This regression
will be fixed in a subsequent commit.
Initial catkinization.

Beware! Compilation of nao_sensors_cpp has been temporarily disabled.
Deleted roslibs imports and manifest loading
Cleaned up python library headers in nao_driver
Use new header locations for nao_sensors_cpp