Looks like the test suite itself isn't RSpec3 compatible so I've added this version lock to 2 in the Gemfile.  If I have time I'll submit a PR with updated tests for 3
Looks like the test suite itself isn't RSpec3 compatible so I've added this version lock to 2 in the Gemfile.  If I have time I'll submit a PR with updated tests for 3

djpate/active-rest-client,andyjeffries/flexirest,andyjeffries/active-rest-client,MatthieuKopec/active-rest-client,MoKuH/active-rest-client,chenhang/active-rest-client,chibicode/active-rest-client,whichdigital/active-rest-client,nathanhoel/active-rest-client