Add support for OS X en0 on internal_ip
Add support for OS X en0 on internal_ip

prvnkumar/powerline,blindFS/powerline,EricSB/powerline,QuLogic/powerline,EricSB/powerline,prvnkumar/powerline,kenrachynski/powerline,blindFS/powerline,kenrachynski/powerline,areteix/powerline,EricSB/powerline,blindFS/powerline,prvnkumar/powerline,S0lll0s/powerline,QuLogic/powerline,kenrachynski/powerline,areteix/powerline,S0lll0s/powerline,S0lll0s/powerline,areteix/powerline,QuLogic/powerline