add travis CI
add travis CI

nsdown/ShadowVPN,qskycolor/ShadowVPN,zhufenggood/ShadowVPN,li77leprince/ShadowVPN,xiaguangme/ShadowVPN,bjrara/ShadowVPN,sunclx/ShadowVPN,qskycolor/ShadowVPN,froggatt/ShadowVPN,sunclx/ShadowVPN,nsdown/ShadowVPN,Spacecup/ShadowVPN,Spacecup/ShadowVPN,nsdown/ShadowVPN,zhufenggood/ShadowVPN,test1943/ShadowVPN,li77leprince/ShadowVPN,xiaguangme/ShadowVPN,AI0day/ShadowVPN,tdh62/ShadowVPN,noikiy/ShadowVPN,AI0day/ShadowVPN,noikiy/ShadowVPN,tdh62/ShadowVPN,froggatt/ShadowVPN,test1943/ShadowVPN,bjrara/ShadowVPN