Generated new Bazel BUILD files and hand-corrected core's BUILD

[areese-stripe]

Re-ran the sbt bazelGenerate command to create new Bazel BUILD files and hand-corrected rainier-core's BUILD file so buildozer wouldn't complain about unused dependencies. Will work on making this not require hand-correction with sbt-bazel's 0.0.2 release.

[avi-stripe]

This is failing CI on the sbt tut target for reasons that aren't immediately clear to me. Will investigate tonight.

[areese-stripe]

Weird. I ran the sbt tut command locally and it was fine.

[codecov-io]

Codecov Report

Merging #322 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #322   +/-   ##
========================================
  Coverage    46.09%   46.09%           
========================================
  Files           80       80           
  Lines         2727     2727           
  Branches       215      215           
========================================
  Hits          1257     1257           
  Misses        1470     1470

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[avi-stripe]

@areese-stripe restarting the build fixed it, so putting it down to some travis flakiness.