Drop Travises usage of xvfb
Drop Travises usage of xvfb

kormoc/osem,neilmillard/osem,alcho/osem,openSUSE/osem,1000miles/osem,openSUSE/osem,raluka/osem,hennevogel/osem,gophercon/osem,neilmillard/osem,SeaGL/osem,rishabhptr/osem,AndrewKvalheim/osem,ChrisBr/osem,kormoc/osem,hennevogel/osem,bgeuken/osem,yifanjiang/osem,rishabhptr/osem,1000miles/osem,BelieveC/osem,raluka/osem,meonkeys/osem,ChrisBr/osem,alcho/osem,bear454/osem,Shriyanshagro/osem,claudiug/osem,namangupta01/osem,hennevogel/osem,bear454/osem,hennevogel/osem,differentreality/osem,neilmillard/osem,sonalkr132/osem,SeaGL/osem,ChrisBr/osem,kormoc/osem,gophercon/osem,Shriyanshagro/osem,namangupta01/osem,claudiug/osem,differentreality/osem,yifanjiang/osem,namangupta01/osem,yifanjiang/osem,claudiug/osem,kormoc/osem,SeaGL/osem,bear454/osem,sonalkr132/osem,BelieveC/osem,namangupta01/osem,differentreality/osem,ChrisBr/osem,rishabhptr/osem,BelieveC/osem,raluka/osem,AndrewKvalheim/osem,BelieveC/osem,openSUSE/osem,bgeuken/osem,differentreality/osem,alcho/osem,rishabhptr/osem,sonalkr132/osem,AndrewKvalheim/osem,bgeuken/osem,Shriyanshagro/osem,sonalkr132/osem,1000miles/osem,meonkeys/osem,Shriyanshagro/osem,meonkeys/osem,bear454/osem,raluka/osem