Minor fix (remote control)

added output_skeleton message to jit.openni
Added image_map to pre-visualizations

In some cases it is easier to see the coloured image to set the kinect
into position
UI enhancements

- 3D virtual grid visualizer is know display the grid according to real
sizes
- added feature to warn user when grid changes were not applied
Updated build script
Updated presets

included are:
- Oscar' soundscape
- Pedro' (normalised) soundscape
- Jose' soundscape (4*5 samples)
- Joao' soundscape
Clean up

deleted unnecessary backup copies
Minor changes