fix(travis): updated travis to use docker
fix(travis): updated travis to use docker

Necromunger/unitystation,Necromunger/unitystation,fomalsd/unitystation,fomalsd/unitystation,krille90/unitystation,krille90/unitystation,fomalsd/unitystation,Necromunger/unitystation,fomalsd/unitystation,fomalsd/unitystation,Necromunger/unitystation,Necromunger/unitystation,Necromunger/unitystation,fomalsd/unitystation,fomalsd/unitystation,krille90/unitystation