Policy Plus - Info on the current category

For quite a while now, if you selected a category in the right pane of Policy Plus, that category's name and description would appear in the informational middle pane. Since Policy Plus doesn't have an Administrative Templates node to contain all the policy categories, though, there was no way to select one of the top-level categories to see its description.

That seemed strange to me, so I just adjusted the UpdatePolicyInfo method to show the current category's information if nothing was selected on the right. The subcategories-and-policies-count text now changes slightly ("This category" vs. "The selected category") depending on whether the category in question is selected from the categories tree or the category listing.

The changes are live on GitHub.

The top-level category "System" has its info in the middle pane