Commented the forcetorquePlugin in the CMake
Added setRefSpeed, we still need to test if it works
Merge branch 'master' of https://github.com/EnricoMingo/gazebo_yarp_plugins

Conflicts:
	include/coman.h
updated readme
Reorganized code(added tag to each function //WORKS, //NOT TESTED,//NOT IMPLEMENTED)
Added setRefSpeed.
Added zipped sdf. Extract it inside /home/you/.gazebo/models