Try removing github token usage on travis to get builds to run.

.travis.yml

@@ -45,8 +45,6 @@ matrix:
 before_install:
   - if [ $TRAVIS_PHP_VERSION != 7.0 ]; then phpenv config-rm xdebug.ini; fi
 
-  - if [ -n "$GH_TOKEN" ]; then composer config github-oauth.github.com ${GH_TOKEN}; fi;
-
   - if [ $DB = 'mysql' ]; then mysql -u root -e 'CREATE DATABASE cakephp_test;'; fi
   - if [ $DB = 'mysql' ]; then mysql -u root -e 'CREATE DATABASE cakephp_test2;'; fi
   - if [ $DB = 'mysql' ]; then mysql -u root -e 'CREATE DATABASE cakephp_test3;'; fi