fixed sqltests.py path

Author: Kareem Zidane

.travis.yml

@@ -14,7 +14,7 @@ install:
 before_script:
 - mysql -e 'CREATE DATABASE IF NOT EXISTS test;'
 - psql -c 'create database test;' -U postgres
-script: python test/sqltests.py
+script: python tests/sqltests.py
 deploy:
 - provider: script
   script: 'curl --fail --data "{ \"tag_name\": \"v$(python setup.py --version)\",