spawn with spawn_nucobot.launch added kinect

rossimulation launch gazebo and rviz
roslaunch nucobot_gazebo nucobot_world.launch onlu gazebo
for teleop use rosrun nucobot_control ket_teleop.py
for pointcloud need instead  camera/depth/points set topic  /kinect/depth/points
![image](https://cloud.githubusercontent.com/assets/9864468/5322160/eb153bf6-7cd3-11e4-8c11-2b15f9a9372f.png)