Use correct identifier for VM Retirement

[jntullo]

Currently, the vm "retire" action is using the product feature vm_retire which aligns to Set Retirement Date. The identifier that should be used is vm_retire_now which is the correct product feature for immediately retiring a VM.

The response for before the fix if the user does not have "Set Retirement Date" permissions but has "Retire Now" permissions:

"error":{"kind":"forbidden","message":"Use of Action retire is forbidden","klass":"Api::ForbiddenError"}}

Response after the fix is applied to use the correct product feature:

{"success":true,"message":"VM id:10000000001997 name:'jenkins' retiring","href":"http://localhost:3000/api/vms/10000000001997"}

BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1464093

@miq-bot add_label api, bug, euwe/yes, fine/yes
@miq-bot assign @abellotti

cc: @yrudman

[abellotti]

LGTM @jntullo, could you check out travis. Thanks!!

/cc @imtayadeway I see some api logging failures, not sure if related to your PR.

[miq-bot]

Checked commit jntullo@680c290 with ruby 2.2.6, rubocop 0.47.1, and haml-lint 0.20.0
0 files checked, 0 offenses detected
Everything looks fine. 🍰

[abellotti]

Thanks @jntullo for fixing this. 😍

[simaishi]

Euwe backport details:

$ git log -1
commit f3a41dda0a4e142aecd59fa1dd1ca3563362c949
Author: Alberto Bellotti <[email protected]>
Date:   Wed Jul 5 16:35:41 2017 -0400

    Merge pull request #15509 from jntullo/bz/wrong_retirement_product_feature
    
    Use correct identifier for VM Retirement
    (cherry picked from commit 30f51d5eec8695e68ad0205a477e636d2c86892a)
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1468614

[simaishi]

Fine backport details:

 $ git log -1
commit 9eed9540813626a4e96e1537b7c31d9ab3dffbb0
Author: Alberto Bellotti <[email protected]>
Date:   Wed Jul 5 16:35:41 2017 -0400

    Merge pull request #15509 from jntullo/bz/wrong_retirement_product_feature
    
    Use correct identifier for VM Retirement
    (cherry picked from commit 30f51d5eec8695e68ad0205a477e636d2c86892a)
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1478508