[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
[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
[bin/morse] Mark 2.69 as OK to use with Morse
[builder] Fix fallout from the removing of SINGLETEXTURE in blender-current
[core] Implement properly 'is_fastmode'

Check about the space3D mode, not the texture used inside. In
particular, it fixes the implementation for blender-current
[mw/yarp] Fix typo in generic encoding, and provide encoding for tuple
[cmake] Prepare for 1.1.1
[doc] Mention pymorse option for homebrew

While here, fix some typos