Fix Travis git push

I believe this will fix the git push error on Travis releases. It's hard to actually test though.

Author: abalmos

.travis.yml

@@ -29,6 +29,7 @@ script:
 after_success:
   - |
     if [[ $TRAVIS_SECURE_ENV_VARS == 'true' ]]; then
+      git remote set-url origin https://cerebraljs:${GH_TOKEN}@github.com/cerebral/overmind;
       git config --global user.email "[email protected]";
       git config --global user.name "Cerebral JS";
     fi