fix circleci test_builder test (#46)

* [fix] fixed run query builder tests. ( added it also to checkout step )

* [fix] Use a simple (but explicit) path modification to resolve the package properly.

Author: filipecosta90

test/test_builder.py

@@ -1,3 +1,6 @@
+import os, sys
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
+
 import unittest
 import redisearch.aggregation as a
 import redisearch.querystring as q