links.py created
Merge branch 'master' of github.com:pylayers/pylayers

Conflicts:
	pylayers/simul/links.py
iwork on link class
modif ray
add _saveh5 in rays
modif in sig
add _saveh5 in signature
change in channel
add save_h5 in channel
save T chann
add _saveh5 in Tchannel
Merge branch 'master' of github.com:pylayers/pylayers
updating doc
adding example figures
+ New examples can be added in doc/_static
- correct save imanagement of obj in links.
- next step : add load
add docstring of antssh.py
Merge branch 'master' of github.com:pylayers/pylayers
- Class Link allow to simulate a given link and save it into h5py
  format. If a link has already been calculated, it is read from the
file
- update Signature, Rays consequently
- add a ptin method to layout to determine if a point is inside a Layout
Class Link
modif for documantation