Add condition to select Datacenter in vm_tree with hidden vms

[ZitaNemeckova]

https://bugzilla.redhat.com/show_bug.cgi?id=1431148

Any Vm that is directly under Datacenter folder didn't have its parent selected correctly.

VM place:

Before:

After:

Introduced by ManageIQ/manageiq#11387 => euwe/yes

Closes #311

@miq-bot add_label euwe/yes, bug

[ZitaNemeckova]

@skateman please have a look :)

[skateman]

@ZitaNemeckova tests ?

[ZitaNemeckova]

@skateman It's not nice to :P But you are right. Test added :)

[miq-bot]

Checked commits ZitaNemeckova/manageiq-ui-classic@cd4c22c~...33226ac with ruby 2.2.6, rubocop 0.47.1, and haml-lint 0.20.0
2 files checked, 3 offenses detected

spec/controllers/vm_common_spec.rb

• ❕ - Line 263, Col 121 - Metrics/LineLength - Line is too long. [127/120]
• ❕ - Line 268, Col 121 - Metrics/LineLength - Line is too long. [125/120]
• ❕ - Line 269, Col 121 - Metrics/LineLength - Line is too long. [131/120]

[skateman]

[simaishi]

@ZitaNemeckova Is there a BZ for this? Can you please create one if it doesn't exist?

[simaishi]

Euwe backport (to manageiq repo) details:

$ git log -1
commit 9f3af99c4a8b0978081d28d2fa6190ff5e3f89fd
Author: Milan Zázrivec <mzazrivec@redhat.com>
Date:   Sat Mar 4 20:23:23 2017 +0100

    Merge pull request #488 from ZitaNemeckova/vm_tree_fix
    
    Add condition to select Datacenter in vm_tree with hidden vms
    (cherry picked from commit 9d789aa6f6e3e0790228c7753ccfda10d2fe03bb)
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1431166