Add Travis-CI status image
Add Travis-CI status image

Signed-off-by: Maxime Petazzoni <0706025b2bbcec1ed8d64822f4eccd96314938d0@signalfuse.com>

tsbatista/ttorrent,andrew749/ttorrent,henkel/ttorrent,indeedeng/ttorrent,shevek/ttorrent,d3roch4/ttorrent,d3roch4/ttorrent,zanella/ttorrent,shevek/ttorrent,fspereira/ttorrent,13922841464/ttorrent,pisek/ttorrent,rambegaokar/ttorrent,andrew749/ttorrent,zanella/ttorrent,13922841464/ttorrent,pisek/ttorrent,akkinenirajesh/ttorrent,tsbatista/ttorrent,akkinenirajesh/ttorrent,rambegaokar/ttorrent,fspereira/ttorrent,henkel/ttorrent,indeedeng/ttorrent