Added riak 1.4 bits, support for reset bucket, and support for counter ops

Hey!

I added the counter operations and the bucket reset function.  Tests included.

I changed the organization of the proto files; the files used by the lib are symlinks.  I did that cause I wanted easy diffs.

I also added a config for Travis CI.  Haven't tested it, tho, and I'm not sure if the travis images are using riak 1.4 yet.

Let me know what you think.

EDIT:  checked and fixed the travis config.  And it passes!