Fix for unable to import service dialog from yaml

[d-m-u]

Makes helper methods accessible.

https://bugzilla.redhat.com/show_bug.cgi?id=1429964

[eclarizio]

@martinpovolny Any idea why we would need to explicitly extend the helper here instead of the methods just being available to use in the view? I feel like while extending it technically solves the BZ, we shouldn't need to do that and it may be a symptom of a different issue.

[martinpovolny]

I'd day that app/controllers/miq_ae_customization_controller.rb should include the line:

helper ApplicationHelper::ImportExportHelper

instead of the changes seen here

[miq-bot]

Checked commit d-m-u@07795e8 with ruby 2.2.6, rubocop 0.47.1, and haml-lint 0.20.0
1 file checked, 0 offenses detected
Everything looks good. 👍

[gmcculloug]

@martinpovolny Please review/merge.