Some fixes and improvements to the RasPi deployment generator.

...af3/platform/raspberry/generator/extension/brick/.ratings

...xtension/brick/AccelerationXSensorGeneratorExtension.java

...xtension/brick/AccelerationYSensorGeneratorExtension.java

...xtension/brick/AccelerationZSensorGeneratorExtension.java

...nsion/brick/AngularVelocityXSensorGeneratorExtension.java

...nsion/brick/AngularVelocityYSensorGeneratorExtension.java

...nsion/brick/AngularVelocityZSensorGeneratorExtension.java

...ator/extension/brick/IMUSensorGeneratorExtensionBase.java

...r/extension/brick/LaserRangeSensorGeneratorExtension.java

...r/extension/brick/UltraSonicSensorGeneratorExtension.java