Enable auto-backups for VS

To enable incremental auto-backups for a Virtual Server:

POST /virtual_machines/:id/autobackup_enable.xml
POST /virtual_machines/:id/autobackup_enable.json

XML Request example

curl -i -X POST http://onapp.test/virtual_machines/:id/autobackup_enable.xml -u user:userpass -H 'Accept: application/xml' -H 'Content-type: application/xml'

JSON Request example

curl -i -X POST http://onapp.test/virtual_machines/:id/autobackup_enable.json -u user:userpass -H 'Accept: application/json' -H 'Content-type: application/json