Implemented new vibration model based on wave equation.
Vibration source based on wave equation.
Vibration requires absolute time
Casu has a vibration source.
Merge branch 'arg' of https://github.com/plsm/assisi-playground into vibration

Conflicts:
	interactions/WaveVibrationSource.cpp
	interactions/WaveVibrationSource.h
Implementation of new casu vibration sensor.

does not compile
Merge branch 'vibration' of https://github.com/plsm/assisi-playground.git into vibration
Testing vibration model.
Testing new vibration model.
Modified casu class.
Implemented vibration noise and phase.
Added vibration actuator to casu.
First version of handler
Merge branch 'master' of https://github.com/larics/assisi-playground into vibration

Conflicts:
	playground/CMakeLists.txt
Merge pull request #30 from plsm/vibration

Merging Vibration Model.