add header info to _infrastructure.py
add header info to _infrastructure.py

mbrukman/flocker,moypray/flocker,w4ngyi/flocker,wallnerryan/flocker-profiles,agonzalezro/flocker,runcom/flocker,achanda/flocker,LaynePeng/flocker,wallnerryan/flocker-profiles,w4ngyi/flocker,moypray/flocker,adamtheturtle/flocker,hackday-profilers/flocker,jml/flocker,Azulinho/flocker,hackday-profilers/flocker,LaynePeng/flocker,Azulinho/flocker,agonzalezro/flocker,wallnerryan/flocker-profiles,AndyHuu/flocker,achanda/flocker,lukemarsden/flocker,jml/flocker,runcom/flocker,lukemarsden/flocker,AndyHuu/flocker,Azulinho/flocker,w4ngyi/flocker,agonzalezro/flocker,1d4Nf6/flocker,AndyHuu/flocker,adamtheturtle/flocker,lukemarsden/flocker,hackday-profilers/flocker,1d4Nf6/flocker,adamtheturtle/flocker,runcom/flocker,LaynePeng/flocker,mbrukman/flocker,achanda/flocker,1d4Nf6/flocker,moypray/flocker,mbrukman/flocker,jml/flocker