Add exclude_domain option to hostname segment
Add exclude_domain option to hostname segment

Provides an option to return only the hostname if an fqdn is returned by
socket.gethostname()

areteix/powerline,cyrixhero/powerline,prvnkumar/powerline,lukw00/powerline,QuLogic/powerline,junix/powerline,firebitsbr/powerline,bartvm/powerline,IvanAli/powerline,magus424/powerline,keelerm84/powerline,s0undt3ch/powerline,DoctorJellyface/powerline,firebitsbr/powerline,Liangjianghao/powerline,dragon788/powerline,prvnkumar/powerline,blindFS/powerline,Luffin/powerline,junix/powerline,firebitsbr/powerline,DoctorJellyface/powerline,xfumihiro/powerline,lukw00/powerline,dragon788/powerline,Luffin/powerline,DoctorJellyface/powerline,IvanAli/powerline,seanfisk/powerline,darac/powerline,wfscheper/powerline,magus424/powerline,xxxhycl2010/powerline,S0lll0s/powerline,EricSB/powerline,lukw00/powerline,xfumihiro/powerline,s0undt3ch/powerline,blindFS/powerline,prvnkumar/powerline,kenrachynski/powerline,keelerm84/powerline,darac/powerline,bezhermoso/powerline,cyrixhero/powerline,russellb/powerline,Liangjianghao/powerline,magus424/powerline,S0lll0s/powerline,EricSB/powerline,bezhermoso/powerline,junix/powerline,xxxhycl2010/powerline,russellb/powerline,kenrachynski/powerline,xfumihiro/powerline,wfscheper/powerline,QuLogic/powerline,kenrachynski/powerline,dragon788/powerline,s0undt3ch/powerline,areteix/powerline,xxxhycl2010/powerline,blindFS/powerline,QuLogic/powerline,bezhermoso/powerline,EricSB/powerline,bartvm/powerline,S0lll0s/powerline,areteix/powerline,russellb/powerline,seanfisk/powerline,cyrixhero/powerline,darac/powerline,wfscheper/powerline,seanfisk/powerline,Liangjianghao/powerline,bartvm/powerline,IvanAli/powerline,Luffin/powerline