Reduced the number of particles to lower compotation
Dropping some kinect frames to lower computations
Merge branch 'master' of https://github.com/jpmerc/rosWS

Conflicts:
	custom_ros/src/custom_navigation/launch/amcl_demo.launch
1000 seems fair for an approximative initialization.
Merge branch 'master' of https://github.com/jpmerc/rosWS