Playing with greeting.tests.* methods: types and params location.

(query vs path template vs POST body)
BackendService improvements:

  - make sure app revision matches the one in getApiConfigs request
  - logMessages method
Reorganizing...
Finally, the real README
A couple initial tests for BackendService, just to make sure testutils work.
Typos and go fmt
Hello, Travis.
Hello Travis 2.
Sorry travis. I'll get you, eventually.
Totally forgot goprotobuf/proto dep for Travis
Please ignore these commits. I'm too obsessed with Travis tonight. Sorry.
Run Travis CI tests with -v (verbose)
Merge github.com/dhermes/go-endpoints/commit/b6a68e7fa38242803713676cb7c1101032e01db5

This is still a work in progress. I just wanted to pull it in here and see
if this works well with github.com/crhym3/aegot/testutils.