Update setup script to install appraisals & fix Bundler 1.x check
Update setup script to install appraisals & fix Bundler 1.x check

[ci skip]

biow0lf/shoulda-matchers,thoughtbot/shoulda-matchers,thoughtbot/shoulda-matchers,biow0lf/shoulda-matchers,thoughtbot/shoulda-matchers,biow0lf/shoulda-matchers,thoughtbot/shoulda-matchers,biow0lf/shoulda-matchers