feature #5083 Proofreading and updating entity_provider for readability (weaverryan)

This PR was merged into the 2.3 branch.

Discussion
----------

Proofreading and updating entity_provider for readability

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | no
| Applies to    | all
| Fixed tickets | #2756

Hi guys!

I wanted to close #2756, and when I started looking into things, there were a bunch of changes I wanted to make for readability. I think it's good, but of course, errors are likely :).

Thanks!

Commits
-------

0bb82c6 Fixing bad link name
7153f3b Many fixes thanks to stof, WouterJ, xabbuh and dupuchba
768f7cc Proofreading and updating entity_provider for readability

Author: weaverryan