Update the collada model of Romeo.

The robot parts now have more colors.
The textures on the torso and the head are not handled yet.
The torso and the waist have been separated. The urdf
has been modified accordingly.
Update author.
[romeo_description] Use correct name for sole links.
[romeo_description] Uncomment group all.
[romeo_description] Remove undefined group arms from all.
[romeo_description] Remove dofs values for joint 'waist' in half_sitting.

  * The joint 'waist' is fixed in the urdf, which creates an
    inconsistency between the number of dofs and the joint type.
  * One solution is to retrieve the actuated joints dof values, and
    then compute the free-flyer dof values, such that both feet are on
    the ground (under the strong assumption the robot has two feet and
    that it is standing on a horizontal floor.)
Use Aldebaran notations for links' name.
Correct the way the Thumb bend.
Add a small model for romeo.

The fingers are fixed in this model, and gathered
in one body.
Add gitignore.
Add a launch file to visualize the robot.
Add a vcg file for the rviz launcher.
Add a launcher that make the binding with the sot easier.

This script redirect the state_publisher into the namespace
dynamic_graph.

The script will move in the package sot-romeo in a close
future.
Add real torque limits.
Remove the unit info in the collada file.

This info is not used in fuerte, but used in groovy.
As a result, in groovy, the size of the bodies is
reduced by 100.
Since the dimensions are in meters in the dae files
owing to an additional scaling processs, the unit info
was set to meters, thus ensuring fuerte and
groovy compatibility

See http://answers.gazebosim.org/question/581/is-gazebo-125-unit-aware/
and http://answers.ros.org/question/59514/did-rviz-become-unit-aware/