- first step to add save pe_geo and save pe_alg into network
- add an exploit directoru with simnet.py to exploit all type of
  simulation from simulnet ( pyray, location,...)
stash for update postiion into localization.py
- save localiation ok
- localization save added
- remain a bug of update localization in geometric cla
Merge pull request #61 from mlaaraie/master

Update layout.py and signature.py
Fixing bug in mobility directory
Merge branch 'master' of https://github.com/buguen/pylayers
Ctilde is computed with a loop due to a data size issue
delays are not correctly computed ( slab is not taked into account ? )
work on VSH
work on antenna.py
load and eval ok but still not fit with C
- corrected incorrect delay computation into GrRayTud.eval
GrRaytud shows result close to the C version
Difference probably due to the approximation on the divergence factor
TODO
implement divergence factor
Merge pull request #63 from mlaaraie/master

Update signature.py
MOdification in antenna
Merge branch 'devel' of https://github.com/niamiot/pylayers into niamiot-devel

Conflicts:
	pylayers/antprop/rays.py
Merge branch 'master' of https://github.com/buguen/pylayers
suppress print index in rays
 correct a bug on T and R interaction due to wrong index
now Friis is compliant with C
work on doc