* Remove long-deprecated method
* FIX: Memory Leaks when decorating posts
Previously we'd keep creating mixins dynamically when decorating the
same class.
This code changes the API to recommend an `id` parameter for each
decorator which will avoid leaks. All plugins should be updated to
include this parameter, although if they don't in the meantime it'll
just mean a warning in the console (and a continued leak.)
YouTube thumbnails where being loaded over `http` even on a `https` loaded page.
Causing the browser bar to change from green to yellow 
When an identical youtube video is embedded multiple times on the same page.
it will only be successful setting title to 1st element in the dom matching a unique id which is based on the actual youtube video id.
