add run-tests
reshaping root directory
Merge branch 'master' of https://github.com/pylayers/pylayers
Merge pull request #150 from niamiot/master

fix in project.ini
Update AUTHORS.rst
DOC-RayTRacing2.ipynb corrected
updating
 addind data file
modification centered argument in layout.geomfile
Merge pull request #153 from buguen/master

Adding an argument in geomfile for disabling systematic centering
- bug correction for mobility in layout : agent can now cross airwalls
- exploit_simulnet class to trace trajectory of the agent and their LDP
  evolution for a saved simulnet simulation
- correction in Person.py : no need to contiguous numbering of room