Adds short paragraph about testing Alchemy
Merge pull request #517 from nielspetersen/master

Adds short paragraph about testing Alchemy
Use `alchemy_display_name` to represent the currently logged in user.

To make this better adoptable for applications hosting Alchemy or engines, we do not assume `name` on the user class.
Merge pull request #516 from magiclabs/user-display-name

Use `alchemy_display_name` to represent the currently logged in user.
Merge pull request #518 from magiclabs/js-translations-cleanup

Refactors and cleaning up javascript translations.
Adds a char counter js class.
Adds char counter to page title and meta description fields.