modif in rays and bsignal
Merge branch 'master' of https://github.com/pylayers/pylayers

Conflicts:
	pylayers/antprop/rays.py
modif in rays.py
Merge branch 'master' of https://github.com/pylayers/pylayers
modif in selectl.py
restoring old version of selectl
new selectL in layout
restoring editor in layout
fix 4.5i bug in easygui
Channel rotation Cg2Cl working
geomfile update
Merge branch 'master' of github.com:pylayers/pylayers
remove print
bug fix in Cg2cl
rotation notebook
adapation of energy for path Loss Friis formula
Merge branch 'master' of https://github.com/pylayers/pylayers

Conflicts:
	pylayers/antprop/channel.py
channel doadod now display Path Loss if normalize==False
testing Friis for D2.4 comparison
fixing in test_Friis.py