Gemspec: update VCR version to 2.5.x series
Adding 'pry' as a development dependency
VCR 2.5.0 upgrade script ran
Campaigns spec: use integration test environment
Spec: /api/v1/clients/me
Leaderboard: upgrade vcr
Credentials example for new local integration environment
VCR: include use_vcr_cassette rspec helper, though deprecated
Integration: updating credentials for local integration environment
CI: adding task ci:setup