Feature/ocp template - fix bug with API_URL

I found a bug in template. The frontend creates bogus api url unless API_URL has http(s):// in front of it. Submit and stat calls fail due that javascript will generate address like this: http://ront.apps.ocp4.konttikoulu.fi/ront.apps.ocp4.konttikoulu.fi/api, where the FQDN is in double. By adding http there in front it works right. Thanks Timo Friman for spotting the cause.