Fixes #7903 - Remove call to undefined class
Fixes #7679: add the errata list page and menu item.
Merge pull request #4735 from daviddavis/temp/20141010154932

Fixes #7903 - Remove call to undefined class
Merge pull request #4730 from waldenraines/errata-list

Fixes #7679: adding errata list page.
fixes #7701,7702,7703 - adding selector for type of applicability view

for content hosts
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