.travis.yml: download Drupal 7.x, not 8.x

.travis.yml

@@ -24,15 +24,16 @@ before_script:
 
   # Create new site
   - mysql -e 'create database drupal'
-  - drush --yes core-quick-drupal --profile=testing --no-server --db-url=mysql://root:@127.0.0.1/drupal --enable=simpletest og
+  - drush --yes core-quick-drupal --core=drupal-7.x --profile=testing --no-server --db-url=mysql://root:@127.0.0.1/drupal --enable=simpletest og
+  - export DRUPAL_ROOT=og/drupal-7.x
 
   # Reference and enable module in build site
-  - ln -s $(readlink -e $(cd -)) og/drupal/sites/all/modules/og
-  - cd og/drupal
+  - ln -s $(readlink -e $(cd -)) $DRUPAL_ROOT/sites/all/modules/og
+  - cd $DRUPAL_ROOT
 
   # Enable OG-UI, so drush will auto-download all dependencies
   - drush --yes pm-enable og_ui
 
 script:
-  - php ./og/drupal/scripts/run-tests.sh --concurrency 4 --verbose --color "Organic groups","Organic groups access","Organic groups context","Organic groups field access","Organic groups UI" 2>&1 | tee /tmp/simpletest-result.txt
+  - php ./$DRUPAL_ROOT/scripts/run-tests.sh --concurrency 4 --verbose --color "Organic groups","Organic groups access","Organic groups context","Organic groups field access","Organic groups UI" 2>&1 | tee /tmp/simpletest-result.txt
   - egrep -i "([1-9]+ fail)|(Fatal error)|([1-9]+ exception)" /tmp/simpletest-result.txt && exit 1