Merge pull request #275 from tracelytics/master

Public Repo RC 2.3.3.7 Changes
Merge pull request #278 from tracelytics/master

Release oboe-ruby 2.3.4
Merge remote-tracking branch 'origin/master' into prod
Merge pull request #280 from tracelytics/master

Release oboe-ruby 2.3.4.1 (Patch)
Specify license in the gemspec
Bump version to 2.4.0.1
Re-enable Cassandra tests.
Include pry in the Gemfile
Support Oboe::Config.merge! and warn on non-existent
Fix homepage URL.
Update CHANGELOG
Merge pull request #290 from tracelytics/master

Release oboe-ruby 2.4.0.1
Merge pull request #18 from appneta/relelease-2.4.0.1

Release Candidate 2.4.0.1