Add test for specifying remote URL using run-script-before.
Add test for specifying remote URL using run-script-before.

This concerns issue #3651.

mnaiman/duplicati,duplicati/duplicati,mnaiman/duplicati,duplicati/duplicati,duplicati/duplicati,mnaiman/duplicati,mnaiman/duplicati,duplicati/duplicati,mnaiman/duplicati,duplicati/duplicati