Don't remove .travis.yml from the autogoo branch

It seems that travis only respects our blacklist if we have a
.travis.yml on the relevant branch (I think).  And we don't want to be
compiling this branch, especially without a .travis.yml.
Merge pull request #228 from JasonGross/travis-blacklist

Don't remove .travis.yml from the autogoo branch. I am pretty sure we need no second pair of eyes. In fact, since Jason (I just typed "Json"...) is the only one who really knows about travis, it would seem sensible that you can simply push this kind of technical stuff.