Cleanup admin controller file

* Don't use `options` for JSON and plain text outputs instead use module helper ... faster/cleaner... this is also a Unit Test in this area as well as OpenUserJS#249 checking
* Added watchpoint for OpenUserJS#200 with `encodeURI`
* Only time I've encounter `nil` helper function **so far**... added notation on inconsistency and since it's the only helper function used at this time in this file condensed the `require`
* Added watchpoint for an encountered special render op... first I've seen of these so far... I know what the output looks like but unable to find a matching view for it other than it's visual reference in Admin Tools

**NOTES**
* Questions to follow
* One TODO to finish depending on answers

Originally applies to OpenUserJS#262 ... not part of OpenUserJS#262 (comment)