Allow user upload CA bundle file for Glance with VMware backend

[OpenStack Infra]

https://review.openstack.org/310435
Dear bug triager. This bug was created since a commit was marked with DOCIMPACT.

commit 80fafcd4eb010bee394c775fabf19849b66a70df
Author: Igor Zinovik <email address hidden>
Date: Mon Apr 4 10:08:25 2016 +0300

    Allow user upload CA bundle file for Glance with VMware backend

    Add field that allows user to upload CA certificate that emitted
    vCenters TLS/SSL certificate. It allow Glance with VMware backend verify
    connection to vCenter server (verification is turned on by default).
    If user did not uploaded certificate then, glance will be configured
    to skip verification step during connection to vCenter.

    Partial-bug: #1559067
    DocImpact: Document how to use 'CA file' field on VMware tab.
    Change-Id: I810bc000e54b941018a1190acb26d33150b74ce0
    (cherry picked from commit 59c8b8c7909de07bcbb97ec6c9ae509f98bdaff2)

[Bug Checker Bot (bug-checker)]

(This check performed automatically)
Please, make sure that bug description contains the following sections filled in with the appropriate data related to the bug you are describing:

actual result

version

expected result

steps to reproduce

For more detailed information on the contents of each of the listed sections see https://wiki.openstack.org/wiki/Fuel/How_to_contribute#Here_is_how_you_file_a_bug