[Alpha 16] - template hooks from disabled applications are still referenced in HTML source code

May or may not be working as intended.

Steps to reproduce:

1. Create an application in dev
2. Create a new front-end template, with type = Hook
3. Choose your desired hook application/template
4. Download the application (I've prepared one for you, attached - it hooks on forums/front/topics/topic, before the header)
5. Install the application in test
6. Go to the place where the hook point would be used (with attached app, it would be a topic)
7. Result: see first image, displays commented information about the hook name plus the content it provides.
8. Disable the application
9. Result: see second image, displays commented information the hook name but the hook isn't in use as the application is disable.

First image:

Second image:

Tester 1.0.0.tar