Added XServer emulation to travis
Added XServer emulation to travis

Relfos/TERRA-Engine,thecocce/TERRA-Engine,thecocce/TERRA-Engine,Relfos/TERRA-Engine,thecocce/TERRA-Engine,Relfos/TERRA-Engine,Relfos/TERRA-Engine,thecocce/TERRA-Engine,thecocce/TERRA-Engine,thecocce/TERRA-Engine,thecocce/TERRA-Engine,Relfos/TERRA-Engine,Relfos/TERRA-Engine,Relfos/TERRA-Engine