[multi] add debug mode in multi node sockect serv
[tool] blend dtm move to custom origin

Take our GeoTiff meta-data to move the terrain to its custom origin.
[tool] blend dtm cleanup after displace
[tool] blend dtm use grid instead of plane

can control x,y subdiv
and move Z - min(heightmap)
[tools] add hybrid node to visualize real robot

using multinode_server (socket, JSON, asyncore)

NOTE: StreamJSON should be extern, but cant import `pymorse` in python2
due to `concurrent` module (python3 only, in `pymorse.future`)
[tools] remove old converter from tree

Those scripts where used to convert MORSE 0.6 scenes to MORSE 1.0
... That's "pre-history" :D
[tools] remove dtm to GeoTiff (use clara)

use https://github.com/pierriko/clara instead
pep8: comparisons with None

Comparisons to singletons like None should always be done with is or is
not, never the equality operators.
[builder] set {place,aim}_camera deprecated

use set_camera_{l,r}otation instead.
[builder] set simulation camera properties

Make sure the CameraFP has always the same resolution,
and not the one of the last camera added.

Resolution: 800x600, focal: 25mm.
[builder] Set a field _node_name in environment and use it accordingly

In particular, it fixes the code for multi-node scene with cameras.
[builder] allow external node as viewers
[camera] handle multi-node

This fix a crash when adding camera in multinode
[builder] disable Bullet on non logic scenes
[tools] update terrain usage
[pymorse] fix bug of Python 3.2 [Ubuntu 12.04]
[doc] homepages is not persistent
[bin] Fix an now invalid use of prefix

Reported by mirkodaniele dot comparetti at polimi dot it.
[sensor] Fix an incorrect word in odometry documentation

Spotted by Ofer on morse-users@
[doc] Document some missing supervision services