Including templates in the quick compose window complements the more practical use of "phone call" templates if we ever decided to add a quick log message window. Assuming quick log message copied quick compose they would both ideally support templates.

See the CHD-879 comments for an explanation on quick log message templates.

Reusing the existing e-mail templates dialog is 15 seconds of work, but the issue is 'quick compose' and the templates chooser use the same popup hook in the code. I'll need to tweak some things to have two popups on the screen playing nice.

As a design decision, we've tried to avoid popping up more than one thing at a time. We'll sort something out.

I *FINALLY* got around to adding layers to the popup functionality. It should be trivial to get snippets working with other popups now.

Implemented in 5.6-dev