First commit to allow proper translations of ACL related stuff.
(cherry picked from commit 02528e87ef6b89b1ecf653efb16530219134cfd8)
Update core plugins for ACL localization.

Add localization filters to the core plugins that need it. Add PHPDoc comments to the localization filters in the ACL class.
(cherry picked from commit 661227784a4f570ed39bfb657e99f0d2d8033013)
Stupid typos
(cherry picked from commit b4eba79b75d09f2e2b1a841b2364094a3ba65887)
Using an pre-translated label for the post type is needed for this to work. Get it by running the post type through the already existing filter for their display, then lowercase those results.
(cherry picked from commit 47dfe7d3e4c60b45024409a3d9eab5814f9ee26e)