Use the travis sauce connect addon

.travis.yml

@@ -17,6 +17,9 @@ env:
     - secure: WSPWhlnC4mWSnSPquX+m1/BCu5ch5NygkaHuM2Nea7lD8oS3XLX8QncZZAsQ4lnNfqoDDuBOizG0AESiqNvE4y6x5qvLLTS6q+ce255ZEMZ71TBdZgDEEvGMEjOPPsVXiXyTQOP1lwOPlrbZvaPgWV7e11KIBab6DfFcQpnvDgo=
     - secure: SW7CJhZnwaNT749Gdnhvqb5rbXlAOsygUAzh9qhtyvbqXKkmJdBIEsO01YF6pbju1X2twE9JvWCOxeZju43NgQChJlPsGbjY2j3k/TdQeTAJesQe2K7ytwghunI30gjEovtRH0T3w1EmcKPH8yj5eBIcB2OYoJHx8KEC7e68q1g=
 
+addons:
+  sauce_connect: true
+
 matrix:
   include:
     - env:

travis-core-script.sh

@@ -2,10 +2,8 @@
 
 if [ $USE_SAUCE == true ]
 then
-  if [ $TRAVIS_SECURE_ENV_VARS == true ]
+  if [ $TRAVIS_SECURE_ENV_VARS != true ]
   then
-    curl -L https://gist.github.com/santiycr/5139565/raw/sauce_connect_setup.sh | bash
-  else
     echo "skipping tests since we can't use sauce"
     exit 0
   fi