closes #8064

This feature only worked on the same pod and was more confusing than
useful.

in order to support adding new aspect to a dropdown without full
page reload

- move to contacts.js
- use json
- move to aspects_controller
- add route
- rewrite test
- fix css in chrome

- `Rails.root` is a `Pathname`, so let's use `Rails.root.join`
- Clean up most of the remaining `File.join`s

remove sort order logic from controllers; backbone stream does not support it; was to be depricated anyway

Revert "remove sort order option from the stream (commented at is too crazy and way to slow on large data sets)"

This reverts commit 95aac2f3.

remove sort order option from the stream (commented at is too crazy and way to slow on large data sets)

fixed/moved specs; made Person.all_from_aspects scope (move direct AR querying from AspectStream; added more documentation in AspectStream