travis: build against go 1.1.2 instead of 1.1.1
travis: build against go 1.1.2 instead of 1.1.1

marcelometal/gandalf,flaviamissi/gandalf,scorphus/gandalf,gleez/gandalf,tsuru/gandalf,flaviamissi/gandalf,marcelometal/gandalf,gleez/gandalf,scorphus/gandalf,marcelometal/gandalf,tsuru/gandalf,gleez/gandalf