(.travis.yaml) : Update travis test to use irteus-demo.l and add test for eus/models
(.travis.yaml) : Update travis test to use irteus-demo.l and add test for eus/models

aginika/EusLisp,bmagyar/EusLisp,aginika/EusLisp,aginika/EusLisp,wkentaro/EusLisp,bmagyar/EusLisp,bmagyar/EusLisp,wkentaro/EusLisp,wkentaro/EusLisp,bmagyar/EusLisp,wkentaro/EusLisp,aginika/EusLisp