Upgrading python bindings to 3.7.0 to run tests

Author: diemol

tests/bootstrap.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 cd tests
-pip install selenium===3.6.0 \
+pip install selenium===3.7.0 \
             docker===2.5.1 \
             | grep -v 'Requirement already satisfied'