Update .travis.yml to send test coverage

This changes updates the format of the travis.yml to match our general format, as well as ensuring it is configured to send test coverage stats to codeclimate.

.travis.yml

@@ -1,13 +1,21 @@
+env:
+  global:
+  - CC_TEST_REPORTER_ID=9a0d95efc12238c195685a08da6071e41d25bf6475723adf8f419095b56e0ac5
+
 language: ruby
 rvm: 2.4.2
 cache: bundler
 
 # Travis CI clones repositories to a depth of 50 commits, which is only really
 # useful if you are performing git operations.
-# https://docs.travis-ci.com/user/customizing-the-build/#git-clone-depth
+# https://docs.travis-ci.com/user/customizing-the-build/#Git-Clone-Depth
 git:
   depth: 3
 
+before_install:
+- export TZ=UTC
+- gem install -v 1.17.2 bundler --no-rdoc --no-ri
+
 before_script:
   # Setup to support the CodeClimate test coverage submission
   # As per CodeClimate's documentation, they suggest only running