Travis CI: Run against Ruby 2.2
Travis CI: Run against Ruby 2.2

criteo-forks/ssl_certificate-cookbook,karlsvec/ssl_certificate-cookbook,criteo-forks/ssl_certificate-cookbook,zuazo/ssl_certificate-cookbook,zuazo/ssl_certificate-cookbook,onddo/ssl_certificate-cookbook,criteo-forks/ssl_certificate-cookbook,onddo/ssl_certificate-cookbook,karlsvec/ssl_certificate-cookbook,onddo/ssl_certificate-cookbook,zuazo/ssl_certificate-cookbook,karlsvec/ssl_certificate-cookbook