travis: run tests on Go 1.7.1
travis: run tests on Go 1.7.1

andyneff/git-lfs,dakotahawkins/git-lfs,bozaro/git-lfs,Jericho25/-git-lfs_miilkyway,dakotahawkins/git-lfs,aleb/git-lfs,github/git-lfs,bozaro/git-lfs,aleb/git-lfs,andyneff/git-lfs,dakotahawkins/git-lfs,bozaro/git-lfs,aleb/git-lfs,Jericho25/-git-lfs_miilkyway,github/git-lfs,andyneff/git-lfs,Jericho25/-git-lfs_miilkyway,github/git-lfs