Add basic tests, vndr and travis

[SantoDE]

This PR adds some basic tests, travis support and vndr for the dependency :)

Feedback please ;-)

[JamesStewy]

In dump.go, what is the purpose of the new print statement? It should probably be up to the library user to decide how errors are displayed (either printed, logged, etc.).

The tests are great. One small thing, near the bottom of the test file there is a variable called expected which contains the mysqldump version (currently 0.1.1). Could you replace the version with the constant version so it doesn't have to be updated.

Finally for vendoring, I personally don't like vendoring directly into the repo and thus use glide for vendoring in my other projects. If you like I can set that up as well as travis.

[SantoDE]

Hey @JamesStewy ,

sorry, I had some stuff to do ;) Thanks for your feedback. I removed the vendoring, so you're free to set it up like you wish :-)

Regards,
SantoDE

[JamesStewy]

Thanks again @SantoDE :).