disable end-to-end test in travis since server issue
disable end-to-end test in travis since server issue

liming-vie/multiverso,Microsoft/multiverso,zhengsx/multiverso,Microsoft/multiverso,you-n-g/multiverso,liming-vie/multiverso,Microsoft/multiverso,liming-vie/multiverso,zhengsx/multiverso,Microsoft/multiverso,liming-vie/multiverso,you-n-g/multiverso,zhengsx/multiverso,you-n-g/multiverso,you-n-g/multiverso,zhengsx/multiverso