Renamed devices to be more specific and meet conventions
Changed the definition of TransformationSrv

A TransformationSrv provides an arbitrary transformation,
while PoseSrv is meant to represent the pose of a system or
subsystem (i.e. the transformation from the world
to a frame of reference). TransformationSrv cannot therefore
provide PoseSrv by default.
Merge pull request #3 from goldhoorn/transformer

TransformationSrv should not be a PoseSrv by default
Merge pull request #4 from goldhoorn/dvl_and_includes

Dvl and includes
Final Cleanup for controldev, removed Motion2D Service.

As discussed a while ago we decided to remove specific motion commands
from the joystick. Instead we decided to add conversion tasks, that
are system-specific. (not part of this commit)