The resource_retriever package's source was moved into
its own repository, and needs now python-urlgrabber.
Hence, this commit provides the recipe for python-urlgrabber, moves
the resource-retriever to its own location, and updates all other
packages in the robot_model repository.

This commit updates to 1.10.17 and removes the local patch that
has been added to 1.10.17. The new version of collada-urdf has
added another target, and its recipe must be updated.

robot_model contains packages for modeling various aspects of robot
information, specified in the Xml Robot Description Format (URDF). The core
package of this stack is urdf, which parses URDF files, and constructs an
object model (C++) of the robot.

-----------------------
RECIPES collada-urdf AND kdl-parser
OF THE ROBOT-MODEL PACKAGE HAVE NOT BEEN ADDED YET.
-----------------------