Missing error message of deploy

When psu-1.3.1 fails to deploy then no error response appears.

Reason is the set -e at the beginning - which makes the call to curl_wrapper finish the whole execution (if RC != 0).

I tried to move set -e into check_for_errors function. It fixed this issue but possibly caused another issues at parts outside deploy workflow.

Could you be so kind to test it? I would gladly create merge request for this.

Thank you.