Also install libffi-dev and libssl-dev, header packages necessary to build cryptography, necessary to install pyOpenSSL, necessary to install Twisted, necessary to install Flocker.
Also install libffi-dev and libssl-dev, header packages necessary to build cryptography, necessary to install pyOpenSSL, necessary to install Twisted, necessary to install Flocker.

Change in both places since the commands are all duplicated.

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