Update ENC & report scripts to foreman 1.3

As per http://theforeman.org/manuals/1.3/index.html

Should fix
```
DEPRECATION: /reports/create is deprecated, update your report processor to POST to /api/reports
  See the Foreman 1.3 release notes for a new example report processor.
```

Haven't tried the ENC as I don't use it, but guess should be OK...