Attempt to add the Script Page Header to the Source Code Page

* Works on dev
* There is probably some redundant, unused, mustache options set since this is merged/modified code from `script.js` e.g. not efficient at the moment.
* Breadcrumbs are slightly off position wise due to the sidebar being absent

Perhaps the fix needed for #150. This is my least familiar portion of the code but trying to learn it now... hopefully with the help of some others. :)
Remove some redundant unused code and add TODO list

Applies to #150
Fix breadcrumb alignment with view style tag CSS rule

* Obviously not optimized with external CSS here but so is the rule before it.

Applies to #150
Remove that TODO item for last commit of https://github.com/Martii/OpenUserJS.org/commit/d34f20de7390c2fe0afa7fa752bb18fbeeb2de8c

Applies to #150
Add Discussion to user.js to get issue count

* Again mirrored from script.js with a modification to work in this controller.
* Remove TODO for this item

Applies to #150
Merge pull request #387 from Martii/Issue-150scriptSourcePageHeader

Issue 150script source page header

Auto-merged