language: ruby
rvm:
  - 1.9.3
  - 2.0
  - 2.1
  - 2.2
env: COVERALL=1

language: ruby
rvm:
- 1.9.3
- 2.0
- 2.1
- 2.2
env: COVERALL=1
before_install:
- gem install bundler

Use a more recent version of Bundler
Use a more recent version of Bundler

This is an attempt to fix bundle errors.
https://travis-ci.org/aetrion/dnsimple-ruby/jobs/97228226
