Add travis
Add travis

danburkert/raft,frewsxcv/raft-rs,pwoolcoc/raft,placrosse/raft,danburkert/raft,frewsxcv/raft-rs,tempbottle/raft-1,Hoverbear/raft,tschottdorf/raft,tschottdorf/raft,Hoverbear/raft,jamwt/raft,achanda/raft,posix4e/raft