update travis config
update travis config

Endika/knowledge,jobiols/knowledge,xpansa/knowledge,anas-taji/knowledge,acsone/knowledge,xpansa/knowledge,jobiols/knowledge,algiopensource/knowledge,xpansa/knowledge,Endika/knowledge,acsone/knowledge,algiopensource/knowledge,jobiols/knowledge,xpansa/knowledge,algiopensource/knowledge,acsone/knowledge,Endika/knowledge,algiopensource/knowledge,sergiocorato/knowledge,sergiocorato/knowledge,acsone/knowledge,sergiocorato/knowledge,sergiocorato/knowledge,anas-taji/knowledge,Endika/knowledge,jobiols/knowledge,anas-taji/knowledge,anas-taji/knowledge