BNC#872793 Use links instead of data-href in node dashboard

https://bugzilla.novell.com/show_bug.cgi?id=872793

Instead of using data-href loading of new content, use regular links for
the nodes dashboard.

This is a workaround for cases when the ajax-based loading results in
500 error and there is no indication of what went wrong. With links, an
error page will be shown instead.
Remove ajax loading of node details from the dashboard
Canceling edit leads back to node page
Merge pull request #1058 from bkutil/links_in_node_dashboard

BNC#872793 Use links instead of data-href in node dashboard